How to Explain Frequent Migraine Absences at Work Without Over-Explaining Every Time
Calling in sick with a migraine once is uncomfortable. Calling in sick with a migraine for the fifteenth time this year, to the same manager, using the same explanation, for a condition that is never going to resolve, is a completely different experience.
This is not about the initial disclosure conversation. That one is covered in detail in this article: How to Tell Your Boss About Migraines, including the scripts and the language that works. This post is about what comes after: the ongoing pattern, the skepticism that builds alongside it, the imposter syndrome that kicks in when you feel like you have to prove your pain every single time, and what to actually say without turning every absence into an apology tour.
Why Explaining Migraine Absences Feels Different From Other Sick Days
If you broke your arm, nobody would ask you to justify missing work. There is visible evidence. There is a clear recovery timeline. There is a beginning, a middle, and an end that people can track and feel comfortable with.
Migraine has none of those things.
It is invisible. It looks like a headache to anyone who has never had one. And when it happens repeatedly, with no resolution in sight, the dynamic at work shifts. What started as sympathy from colleagues starts to feel like tolerance. What started as understanding from your manager starts to feel like monitoring.
According to Migraine Canada, among Canadian employees with migraine, 56% had taken sick days, 23% were on short-term disability, and 18% were on long-term disability. These are not people making choices about whether to show up. These are people managing a neurological condition that does not care about your calendar.
The problem is that chronic absence due to the same condition reads differently than absence due to rotating illnesses. People understand getting sick and getting better. They are less comfortable with a condition that keeps coming back because it never fully left. That discomfort tends to come out sideways: a look across the table, a comment that lands slightly wrong, a quieter tone in the reply to your sick day message.
And when you feel that skepticism, the instinct is to over-explain. To list your symptoms. To add details you weren’t asked for. To somehow make the pain legible enough that they have to believe you.
It almost never works. And it almost always costs you more than the absence did.
What Happens to Your Brain Mid-Meeting (And Why It Is Not an Excuse)
Most of the conversation about migraines and work focuses on the days you miss. What gets talked about less is the days you show up anyway, and what that actually costs.
A working migraine, aka a low-grade migraine, is not a mild version of a migraine. It is a migraine you are managing while also trying to function. And one of its more specific cruelties is what it does to language.
Mid-sentence, the words leave. Not slowly, not gradually. They are just gone. You were saying something, you knew where the sentence was going, and then there is a gap where the next word should be. Sometimes it comes back two or three minutes later, when the conversation has already moved on. Sometimes you have to rebuild the thought from the beginning and hope the thread is still there.
It is like a scratched record skipping. You can hear where the music should be. You know the song. But the needle keeps catching and your brain keeps glitching on the same phrase.
This is not a performance issue or a lack of preparation. It is a neurological symptom called aphasia, and it is a documented feature of migraine attacks, including the low-grade ones, where you technically look fine. The American Migraine Foundation recognizes cognitive symptoms, including word-finding difficulty, as part of the migraine experience across its phases.
Sitting through a meeting while this is happening takes significantly more effort than sitting through the same meeting on a clear day. You are tracking what other people are saying, trying to hold your own thread, managing the physical symptoms you are not mentioning, and attempting to appear as though none of this is occurring. It is exhausting in a way that does not show up anywhere visible for people to register.
For more on what a working migraine actually looks and feels like from the inside, the low-grade migraine post covers the full picture.
What to Say When You Need to Call In
The instinct when calling in sick with a migraine is to explain enough that the person receiving the message understands why you cannot come in. The problem is that explanation quickly becomes justification, and justification has no natural stopping point.
The messages that work best are short, medically framed, and don’t invite negotiation.
Here is an example:
"I'm feeling under the weather today. I'm taking some medication to see if that helps, but I may need to take the afternoon off to recover. I'll keep you posted."
That is it. "Under the weather" does the work without requiring a symptom inventory. The medication mention signals that you are managing it actively. The update promise keeps you in control of the next communication rather than waiting to be asked.
Depending on your relationship with your manager, "under the weather" can be replaced with something more specific. With a manager you trust, "I have a migraine coming on" is clear, direct, and requires no further explanation. With a manager where that level of disclosure does not feel safe, the vaguer version protects you without being dishonest.
What to avoid: opening with an apology, listing your symptoms in detail, offering to work through it unless you genuinely can, and ending with a question that puts the decision in their hands rather than yours.
For a full set of scripts covering the sick day message, the accommodation request, and the initial disclosure conversation, the migraine at work post has copy-paste language for each situation.
Navigating the Ongoing Pattern Without a Formal Conversation
Not every recurring absence situation leads to a formal accommodation conversation. Sometimes you are managing it quietly, informally, and hoping the work you do on good days carries enough weight to cover the days you cannot.
The approach that tends to work better than silence is proactive communication. When you notice a migraine building to the point where it is starting to slow you down, messaging your manager before the situation becomes a problem that puts you in a position where you need to suddenly drop off to manage it and miss a deadline. Your manager will appreciate the notice rather than you just disappearing. This also provides you with documentation of notifying them.
Something like: "I'm monitoring a potential migraine today. I'm taking my medication and hoping it resolves, but I want to flag that I may need to adjust some timelines or take a half day if it doesn't improve. I'll keep you updated."
This does three things. It demonstrates that you are managing the condition actively rather than reactively. It gives your manager information before they need to come looking for it. And it frames the situation as a medical reality you are handling, not an excuse you are constructing, and it allows you a simple follow-up message of “I’m taking a half day” if it does progress.
The caveat is that this approach only works with managers who are safe to be proactive with. Not every manager is. There are workplaces where flagging a potential migraine before it peaks results in scrutiny rather than support, where leaving even slightly early triggers a conversation you did not want to have, and where the culture makes quiet symptom management the only viable option.
If you are in that environment, the proactive approach is not always available to you. What is available is documentation. Keeping a record of your absences, your communication, and any responses you receive from management creates a paper trail that matters if the situation escalates to a formal accommodation request or a human rights complaint. The stress-migraine cycle post covers what workplace pressure does to migraine frequency, which is relevant context if your environment is making things worse.
Dealing With Skepticism and the Imposter Syndrome It Triggers
The skepticism rarely announces itself directly. It comes in looks. In a slightly flatter tone in the reply to your absence message. In a comment that is technically fine but lands wrong. In the feeling that you are being watched more carefully after a bad week.
And when you feel it, the response is almost automatic: explain more. Add detail. Make the pain legible. Demonstrate that this is real.
The problem with that response is that it does not actually address the skepticism. It feeds it. Over-explaining signals uncertainty about your own validity. It invites people to weigh the explanation rather than simply receive the information. And it puts you in the position of auditioning for your own sick day every time you need one.
Chronic migraine attracts more skepticism than most conditions because it is invisible, because it sounds like something people have managed with Advil, and because it keeps coming back. Research cited by Migraine Canada found that people with chronic migraine experienced more stigma than people with epilepsy and episodic migraine, and that stigma was directly linked to their ability to work. The skepticism is not imagined, and it is not your fault. It is a documented feature of how this condition is perceived.
What helps more than over-explaining is having language you can return to when the imposter syndrome kicks in. Not for the conversation with your manager. For the conversation with yourself.
These are the ones that actually work for me:
My migraines are real. I have a neurological condition, not a preference.
I am allowed to have time off to recover. That is what sick leave exists for.
Taking time to recover is not optional. It is what makes it possible to show up the next day.
I cannot perform at my best if I do not allow myself to recover first.
The goal is not to convince anyone else. The goal is to stop the internal spiral long enough to send the message, close the laptop, and actually rest. What other people believe about your condition is not something you can control. What you do with your recovery time is.
What You Are Entitled to in Canada
If the informal approach is not working, or if your absences are being tracked in a way that feels punitive, the formal route exists, and it is worth knowing about before you need it.
Under the Canadian Human Rights Act, employers have a legal duty to accommodate employees with disabilities to the point of undue hardship. Chronic migraine, particularly at the daily or near-daily level, qualifies as a disability in many cases. That means accommodation is not a favor your employer can choose to extend or withhold. It is a legal obligation.
Accommodations that fall under this include remote work flexibility, modified schedules, adjusted deadlines during high-frequency periods, and environmental changes. Medical documentation may be requested, and providing it is generally in your interest when pursuing formal accommodation.
Migraine Canada has a detailed duty to accommodate resources specific to Canadian workplaces. The migraine at work post covers the formal accommodation request process, including what to put in writing and how to frame the conversation with HR.
What Employers Need to Understand
If you are reading this and someone on your team has chronic migraines, or if you are considering sharing this post with someone who does, here is the short version.
A Canadian study of 28,000 employees across 16 health conditions found that migraine ranked third for cost related to missed work days, behind only back pain and mood disorders, and ahead of asthma, diabetes, cancer, and arthritis. The absences are not a motivation problem. They are a medical reality.
The employees managing chronic migraine who stay in their roles, perform well on good days, and communicate proactively about bad ones are doing that because their environment makes it possible. Skepticism, scrutiny, and informal punishment for medical absence do not reduce the frequency of migraines. They add stress, which is one of the most well-documented migraine triggers, which increases the frequency of migraines. The math does not work in anyone's favour.
Accommodation is not a concession. It is what keeps skilled people in their roles.
FAQs
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Yes. Migraine is a neurological condition recognized by the World Health Organization as one of the leading causes of disability globally. A migraine attack involves symptoms that extend well beyond head pain, including light and sound sensitivity, nausea, vomiting, and significant cognitive impairment. Missing work due to a migraine is a medical absence, not a preference.
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Yes, in most cases, an employer can request medical documentation for repeated absences. Providing documentation from your neurologist or GP that confirms your diagnosis and its episodic nature is generally in your interest if absences are being tracked or questioned. It shifts the conversation from personal credibility to medical fact. Migraine Canada's employee benefits FAQ covers documentation in more detail.
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Chronic migraine qualifies as a disability under the Canadian Human Rights Act in many cases, particularly when it significantly limits daily activity or work capacity. Employers have a legal duty to accommodate employees with disabilities to the point of undue hardship. If you are experiencing pushback on accommodation requests, speaking with an employment lawyer or contacting the Canadian Human Rights Commission is a reasonable next step.
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There is no universal threshold. Chronic migraine is defined as 15 or more migraine days per month, which means for some people, absence is frequent and ongoing rather than occasional. What matters legally is not the frequency but whether the employer is meeting their duty to accommodate. Frequency is relevant to the accommodation conversation, not to whether the absence is legitimate.
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Keep it short and medically framed. "I'm not well today and need to take a sick day to recover" is sufficient. If you have a safe relationship with your manager, "I have a migraine" is clear and requires no elaboration. Avoid listing symptoms, over-apologizing, or offering to work through it unless you genuinely can. For a full set of sick day and accommodation scripts written in plain language, the migraine at work post has copy-paste versions for each situation.
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Document everything. Keep a record of your absences, the communication you send, and the responses you receive. If informal management is not working and the skepticism is affecting your employment, a formal accommodation request puts the legal obligation on the employer rather than the credibility on you. The Canadian Human Rights Act exists specifically for this situation. Migraine Canada's duty to accommodate resource is a good starting point.
The content on this page is based on personal experience and is not medical advice. Always consult your doctor regarding your migraine management and treatment plan.
QUICK ANSWER: Frequent migraine absences at work require a different communication strategy than a one-off sick day. Short, medically framed messages without apology loops work better than detailed symptom explanations. In Canada, chronic migraine qualifies as a disability under the Canadian Human Rights Act, which means you have legal protections around accommodation and absence that most people with migraines do not know they can use.
