How to Tell Your Boss About Migraines (Scripts From Someone Who Has Done It More Than Once)

I have had this conversation more than four times across different workplaces, different managers, and different seniority levels. I have had it as a junior employee trying to sound credible. I have had it as someone who had already missed days and needed to explain a pattern. I have had it over a Teams call, in a meeting room, and once in a message typed from a dark room while a migraine was still in progress.

It does not get easier exactly. But it gets cleaner. You stop over-explaining. You stop apologizing for things that do not require an apology. You learn what to say and, more importantly, what to leave out.

This article has the scripts for those conversations. It also has the honest version of why this conversation is so hard, what you are and are not legally required to disclose, and what to do when your manager's response, or complete lack of one, makes the anxiety worse than the migraine.

Why This Conversation Is So Hard

Before anything practical, it is worth naming what makes this conversation feel disproportionately difficult for so many people.

You look fine. You walked into work this morning. You are articulate and capable, and sitting across from your manager looking like someone who is absolutely not in the middle of managing a chronic neurological condition. The credibility gap between how you present and what you are describing is real, and it creates an undercurrent of needing to prove something before you have even finished your first sentence.

There is also the capability question. The worry that once your manager knows, something will shift in how they see you. That you become the person who might not be reliable, who might need managing around, whose name gets quietly removed from things. This fear is not unfounded. It is also, in most workplaces and under most legal frameworks, not something your employer is permitted to do.

And then there is the people-pleaser dimension of it. The internal cost of asking for what you need when you have spent your whole life trying not to be a burden. The way asking someone to adjust the blinds can feel like a bigger lift than the migraine itself. The candle a colleague lit two cubicles away triggered a migraine, and you said nothing about it because you had never spoken to them, and it felt like too much to start that conversation.

I have been there. Most people who experience migraines at work have been there. The conversation is hard not because of what you are asking for, but because of what it costs to ask.

What You Are and Are Not Required to Disclose

In Canada, you are not required to share your diagnosis with your employer. You are required to provide reasonable notice when you cannot attend work, and if you are requesting a workplace accommodation, you need to provide enough information for your employer to assess and respond to that request.

What that means in practice is that you do not need to hand over your medical history. You need to explain that you have a chronic condition that occasionally affects your availability and that there are some low-impact adjustments that would help you manage it effectively.

The language matters. "Episodic neurological condition" is accurate and carries the right weight. "Bad headaches" invites the response that everyone gets headaches sometimes. The former signals that this is a medical matter. The latter signals that it is a preference.

Migraine Canada notes that migraine is the second leading cause of disability globally and that many people living with it are high-functioning professionals who manage their condition actively. That framing is useful to carry into the conversation.

What Migraines Actually Costs Your Workplace

This reframe is worth keeping in your back pocket for the moments when you feel like you are asking for a favour.

You are not. Migraine is the second leading cause of disability worldwide, according to the World Health Organization. In the workplace context, unmanaged migraine costs significantly more in lost productivity, presenteeism, and turnover than the low-cost accommodations that allow people to manage it effectively.

Adjusting blinds costs nothing. Flexible hours on bad days cost very little. Permission to work from a darker space or from home when needed is a minimal operational change. The alternative is an employee who pushes through a migraine at 40% capacity for eight hours and produces work that reflects that, or who burns through sick days because nothing was adjusted.

You are not asking your employer to do you a favour. You are offering them a more effective version of you in exchange for a small operational flexibility. That is a reasonable transaction.

The Conversation Script: What to Actually Say

Here are three versions depending on the situation.

Version 1: The Initial Disclosure to Your Direct Manager

This is the planned conversation, in a meeting or a private call. Keep it under five minutes. You are informing, not explaining.

"I wanted to flag something with you. I have a chronic neurological condition, episodic migraines, meaning it comes and goes in cycles. On most days it does not affect my work at all. On some days, particularly when an attack is severe, I may need to take a sick day or adjust how I am working. I manage it actively, and I have a treatment plan in place. I wanted you to have that context so that if I do need to take a day, you are not caught off guard, and so we can talk about whether there are any small adjustments that would help on the harder days."

What not to say: do not describe symptoms in detail unless asked. Do not apologize for having the condition. Do not add qualifiers like "I know this is inconvenient" or "I hope this is okay."

Version 2: The Sick Day Message

Short. Clear. Do not over-explain.

"Hi [name], I need to take a sick day today due to a migraine. I will be back tomorrow and will follow up on anything time-sensitive as soon as I am able. Thank you."

That is the whole message. You do not owe a description of your symptoms. You do not need to pre-apologise for your absence. If someone leaves the message on read and says nothing back, that silence is not a verdict on your worth as an employee. It is a person being busy or uncertain how to respond. Their non-response is not information about you.

The anxiety that fills the silence of an unanswered Teams message is real. I know it because I have sat in a dark room refreshing a conversation waiting for a reply that would tell me I was not in trouble. The reply does not always come. You took a sick day for a medical condition. That is your legal right, and it does not require a response to be valid.

Version 3: The Accommodation Request

This can be verbal or written. Written is better if you want a record.

"Following our previous conversation about my condition, I wanted to put in writing a few adjustments that would help me manage effectively. These are: the ability to adjust window blinds at my workstation, flexibility to work from home on days when an attack is building, and the option to reorganize my task priorities on lower-capacity days without it affecting my performance assessment. None of these require significant changes from the team. I am happy to discuss further if useful."

The Follow-Up Email Template

Use this after a verbal conversation, or as a standalone accommodation request.

Subject: Follow-Up: Workplace Adjustments for Chronic Condition

Hi [Name],

Thank you for taking the time to speak with me about this. As discussed, I wanted to summarise the adjustments that would help me manage my condition effectively at work.

I have a chronic episodic neurological condition that occasionally affects my capacity. The following low-impact adjustments would make a meaningful difference:

• Flexibility to work from home when an attack is building or active

• Ability to adjust lighting at my workstation, including blinds

• Option to reorganise daily tasks based on current cognitive capacity

• Understanding that on a sick day, I may not be able to respond immediately but will follow up as soon as I am able

I manage this condition actively and proactively. These adjustments allow me to maintain my output and remain a reliable member of the team.

Please let me know if you have any questions or would like to discuss further.

[Your name]

Accommodations That Actually Help and How to Ask for Them

Most workplace migraine accommodations are low-cost and easy to implement. The barrier is usually not your employer's willingness. It is you working up to asking.

Here is what I actually use:

• Adjusting the blinds at my desk. Direct light is one of the fastest threshold-fillers in an office environment. Moving the angle of light even slightly makes a measurable difference on a building migraine day.

• Sunglasses. I wear them. I do not explain them every time. If someone asks, "light sensitivity from a chronic condition" is a complete answer.

• Headphones with low classical music. Managing the tinnitus and maintaining focus on a working migraine day. No lyrics, no strong beats, just something steady for the auditory system to follow.

• Reorganizing tasks by current capacity. The cognitively demanding work goes to the hours when the fog is lighter. The administrative tasks, the low-stakes emails, the data entry, fill the harder hours. This is not slacking. It is efficient resource management.

• Working from a darker space. On the worst office days, I have worked from a meeting room with the lights off, anywhere that reduced the sensory load enough to get through the remaining hours. If your workplace has quiet rooms or booths, these are worth knowing about and using without apology.

• Working from home. On a day when a migraine is building, working from home removes the commute, the office lighting, the ambient noise, and the social cost of managing how you appear in front of colleagues. If this is available to you, use it.

Requesting no scented products near your workstation. This one is harder because it involves someone else. If a colleague's candle, perfume, or air freshener is triggering your migraines, you are allowed to say something. You do not need to have a relationship with them to do it. "I have a medical sensitivity to strong scents. Would you mind moving that?" is a complete and reasonable sentence. It can also help to see if your work has a scent policy that you can utilize to help with this conversation.

When the Response Is Not What You Hoped For

Sometimes your manager nods and says nothing useful. Sometimes you get the look, the one that tells you they heard the words, but did not really land anywhere with them. Sometimes your sick day message sits on read for three hours, and by the time someone responds, you have already written a version of your resignation letter in your head.

None of that means the conversation went wrong. It often means the person on the other side does not have a framework for understanding chronic invisible illness and does not know what to say. That is their limitation, not a reflection of your legitimacy.

If the response prompts you to over-explain, which for me it often does, try to notice that impulse and resist it. You have already said what needed to be said. Adding more detail to fill their silence does not help you, and it does not help them understand better. It just costs you more.

If an accommodation request is refused without reasonable grounds, that is worth escalating to HR. In Canada, employers have a legal duty to accommodate employees with disabilities up to the point of undue hardship. Chronic migraine qualifies.

Job Security and Migraines: What You Should Know

In Canada, chronic migraine is recognized as a disability under the Canadian Human Rights Act. This means your employer cannot legally terminate your employment because of your condition or your absences related to it.

This is not a threat to hold over your employer. It is a foundation to stand on when you go into the conversation. You are not asking for special treatment. You are asking for what the law recognizes as your right.

Knowing this does not make the conversation easier emotionally. But it changes the internal framing from "I hope they will be okay with this" to "I am informing them of a medical reality and the adjustments I need." That shift matters.

FAQs

• Is a migraine a valid reason to call in sick?

  Yes. Migraine is a recognised neurological condition and a leading cause of disability. A severe migraine attack that prevents you from working is a medical absence, the same as any other illness. You are not required to justify it beyond a standard sick day notification.

• Can I be fired for missing work due to migraines?

  In Canada, you cannot legally be terminated for absences related to a protected disability. Chronic migraine qualifies as a disability under the Canadian Human Rights Act. If you believe your employment has been affected because of your condition, speaking with an employment lawyer or your HR department is the appropriate next step.

• How do I explain what a migraine feels like to my employer?

  Keep it functional rather than symptomatic. "A severe migraine attack Keep it functional rather than symptomatic. "A severe migraine attack affects my ability to look at screens, process information, and be in lit environments. It is not a headache I can push through. It requires rest and time to recover." You do not need to describe the pain in detail. You need them to understand the functional impact.affects my ability to look at screens, process information, and be in lit environments. It is not a headache I can push through. It requires rest and time to recover." You do not need to describe the pain in detail. You need them to understand the functional impact.

• How much do I have to disclose about my condition at work?

  You do not need to share a diagnosis. You just need to share enough information for your employer to understand that you have a chronic condition that occasionally affects your availability and to respond to any accommodation request. "Episodic neurological condition" is sufficient language in most workplace contexts.

• What accommodations can I ask for with chronic migraine?

  Common and reasonable accommodations include flexible or remote working options, lighting adjustments at your workstation, flexibility to reorganise tasks on lower-capacity days, and a scent-reduced environment. Most of these are low-cost and easy to implement. Migraine Canada has resources specifically for workplace accommodation conversations.

• How do you support someone who lives alone with migraines?

  Check in, particularly after you know they have had a bad one. Ask specific questions rather than general ones: not “how are you” but “did you manage to eat today?” Offer concrete help rather than open-ended offers: not “let me know if you need anything” but “I am going to the shops, do you want me to pick up ginger ale?” If they visit you and have an attack, make sure your home has the basics they need. And believe them, consistently, without requiring visible evidence of severity. That last one costs nothing and means more than most people realise.

• How do I handle colleagues who do not understand migraines?

  You are not obligated to educate every colleague. For people who make comments, "it is a neurological condition, not a headache" is a complete response. For practical situations like scented products near your workstation, a direct, brief, non-apologetic ask is usually enough. You do not need a relationship with someone to ask them to move a candle.

The content on this page is based on personal experience and is not medical advice. Always consult your doctor or neurologist regarding your migraine management and treatment plan.

QUICK ANSWER: You are not legally required to share a diagnosis with your employer. You are required to provide reasonable notice of absence and, when requesting accommodation, enough information for your employer to respond appropriately. The language to use is "episodic neurological condition" rather than "bad headaches." Frame the conversation around function and solutions, not symptoms. You are not asking for sympathy. You are providing information that allows your employer to support you and allows you to do your job.