The world's second-biggest disability, and the workplace still calls it a headache.

The day after doesn't show up on a doctor's note

Nine in the morning, the headache gone since yesterday, and the overhead lights still feel like an interrogation. You're back at the desk because the attack technically ended. The photophobia didn't get the memo. Neither did the brain fog, the word-finding pauses, the neck that won't turn all the way left. To the person at the next desk you look fine, maybe a little quiet. There's no cast, no crutch, no chart anyone can read across a room. That's the part the workplace never accounts for: the disability outlasts the symptom everyone recognizes, and it does it silently.

The burden-of-proof trap

Call it the burden-of-proof trap. Migraine gets denied at work not because it fails the disability test but because it fails the visibility test. The condition qualifies. The person, on the day they most need the accommodation, is the one least able to prove they need it. Federal law says an employer has to engage in an interactive process once you disclose. What the law doesn't fix is who carries the evidence, and the answer is always you, mid-fog, trying to reconstruct a week you barely remember.

"Just ask for an accommodation" is the wrong advice

The standard advice is to request an accommodation and let the Americans with Disabilities Act do the rest. And on paper that advice is sound. The 2008 amendments to the ADA widened the definition of disability specifically so episodic conditions would count, migraine among them. But the letter of the law and the interactive process are two different animals. An accommodation request opens a negotiation, and negotiations run on documentation. A neurologist's line that reads "chronic migraine" establishes a diagnosis. It says almost nothing about how many days a month you can't face a screen, or that the day after the pain breaks is often worse for focus than the attack itself. So the request stalls in a request for more information you were never set up to produce.

What the numbers actually say

Migraine isn't a niche complaint the workplace can round down to a headache. The Global Burden of Disease Study ranks it the second-leading cause of years lived with disability worldwide, and the single leading cause among people under 50, the exact stretch of life that's supposed to be someone's peak earning years. Roughly a billion people live with it globally, close to 39 million in the United States. Put those two facts next to each other and the workplace gap comes into focus: a top-two global disability that most managers have quietly filed under "takes an aspirin and pushes through."

How a denial actually happens

Here's how a denial usually reads, and it rarely looks like a "no." Someone asks for a flexible start time on recovery days, dimmer lighting at their station, and the option to work the day-after remotely. HR responds with a medical-documentation form. The neurologist fills it in: chronic migraine, under treatment, CGRP therapy started in the spring. The employer comes back with a question dressed as diligence: can you document the specific frequency, duration, and functional impact of the days you're requesting off-site? The worker, whose worst days are precisely the days they can't sit at a screen and write anything down, has no clean record. Weeks pass. The request doesn't get denied so much as it dissolves. The postdrome days, the residual photophobia and the fog nobody names, never make it into a single form.

The bottleneck is evidence, not empathy

Shift the diagnosis of the problem and the fix changes. If the wall isn't the law and isn't even the employer's sympathy, if it's the evidence, then the leverage a migraine sufferer actually has is a record that already exists before the request is ever made. Not a note reconstructed from memory. A continuous timeline that logged the frequency, the duration, and the after-phase as they happened, so the interactive process has something concrete to interact with.

Accommodations get granted on specifics, and an attack is precisely what erases them.

Where a continuous timeline earns its keep

We built Postdrome around the part of the cycle every other tracker drops: the 24 to 72 hours after the pain lifts, when the photophobia lingers and the fog makes work a coin flip. That continuous timeline wasn't designed as legal evidence. It just happens to be exactly what an accommodation file needs. An export that shows attack frequency across months, how long each episode ran, and the functional hit of the postdrome days turns "I get migraines a lot" into a documented pattern an HR reviewer has to weigh. It stays on your device, it's yours to export, and it belongs to you, not an insurer or an employer. One piece of an appeal toolkit, not a lawyer, but the piece most people are missing when the form asks for specifics.

What we're watching

We're watching two things. The rollback of remote-work policies at large employers, which quietly removes the single most useful migraine accommodation before anyone has to formally deny it. And the EEOC charge data on invisible and episodic conditions, which is where the burden-of-proof trap would show up in the numbers if anyone connected the dots. The EEOC received 91,503 new charges of workplace discrimination in fiscal year 2025, up 3.4% from FY2024. ([source](https://www.genre.com/us/knowledge/publications/2026/june/eeoc-trends-and-statistics-2025-en)) If the pattern's there, the documentation gap isn't a personal failing. It's a design flaw in how the whole process asks for proof.