Your migraine disability claim stands or falls on the record, not the pain.
FMLA and SSDI adjudicators decide on paper, not pain. What a claim-grade migraine record actually contains, and why the postdrome days you skip are the ones that count.
The box you can't answer
The form asks how many days in the last twelve months a migraine kept you from working. You stare at it. The app on your phone can tell you exactly when forty-one headaches started and stopped, and nothing at all about the day and a half after each one, when you couldn't read the same paragraph twice or hold a video call without the overhead lights spiking straight through your right eye.
The person who reads this claim will never sit across from you. They will not watch you flinch at the fluorescent tube in the waiting room. They will see the number you write in that box, the medical record behind it, and nothing else. Whatever your body actually did for the past year, this is the only version of it that counts now.
The record is the claim
Here is what almost no one says before a first FMLA certification or an SSDI application. The person deciding your case has no relationship with your pain. They have paper.
A claims examiner at a state Disability Determination Services office, or an HR benefits coordinator processing intermittent leave, rules on the strength of what is written down, when it was written down, and whether it lines up with a specific legal standard. That is the whole contest. Migraine claims almost never fail because someone in that chair doubts migraine is real or disabling. They fail because the paper is thin, late, and vague where it needed to be exact.
Severity is not the hinge
Most disability advice for migraine points you the wrong way. It tells you to prove severity: describe your worst attack, get the specialist to write how excruciating it is, emphasize the pain. Severity is real and it belongs in the record, but it is rarely where a claim turns.
Frequency and functional limitation are. One ten-out-of-ten attack a year does not meet any disability standard. Four disabling days a month, every month, logged as they happen, with a clear account of what you could not do on each one, frequently does. The standard is not 'how bad is your worst day.' It is 'how often, for how long, and what does it stop you from doing.' A record built to answer the first question and not the second is the single most common reason a strong-on-paper migraine case gets denied.
What the two standards actually ask for
FMLA and SSDI are different animals with different paperwork, and confusing them is its own failure mode. FMLA is job-protected unpaid leave: it protects you from being fired for missing work when a migraine incapacitates you, and it can be taken intermittently, an hour or a day at a time. It runs on a provider-completed certification and on the estimated frequency and duration of your flare-ups.
SSDI is income for people who can no longer work at all. Migraine has no dedicated entry in Social Security's listing of impairments, which is exactly where most applicants trip. Since 2019, SSA evaluates primary headache disorders under Social Security Ruling 19-4p, which asks whether your documented headache disorder medically equals Listing 11.02, the epilepsy listing, on the basis of how often your headache events occur, how long they last, their associated symptoms, and your functioning despite adherence to treatment. Both standards, read closely, are asking for the same underlying thing: a longitudinal, contemporaneous record of frequency and functional loss.
Dimension
FMLA (intermittent leave)
SSDI (SSR 19-4p)
What it gets you
Job protection for missed time
Income when you cannot work at all
Governing instrument
Serious-health-condition certification
SSR 19-4p, equivalence to Listing 11.02
Key form / ruling
Provider form WH-380-E
SSR 19-4p (issued 2019)
What it turns on
Estimated frequency and duration of flare-ups
Frequency and duration of headache events plus functional limitation despite treatment
Who documents it
Your healthcare provider, plus your own log
Acceptable medical source plus your longitudinal record
FMLA vs SSDI documentation basics. Exact frequency thresholds for Listing 11.02 equivalence: Listing 11.02B requires dyscognitive seizures (or equivalent) occurring at least once a week for at least 3 consecutive months. ([source](https://www.casemine.com/judgement/us/67971ca2c2c9f357d03042c8/amp)).
One attack, two records
Picture the same migraine written up two ways. The first entry reads: 'Bad one today, took a triptan.' True, and useless to an adjudicator. It has no duration, no functional detail, no after-phase, nothing to count and nothing that maps to a standard.
The second entry reads: 'Onset 6:40am, aura 20 min, head pain through ~2pm. Sumatriptan 100mg at 7:15am, partial relief by 10am. Could not look at a screen until early evening; left work, missed two meetings. Residual fog, neck stiffness, and light sensitivity all of the next day, worked at maybe half speed.' That entry does real work. It gives a duration, a treatment and its response, a concrete functional loss on the day of, and a second impaired day after. Stack thirty of those across a year and you have exactly the frequency-plus-limitation picture both standards are built to score.
Field
Weak entry
Claim-grade entry
Timing
"Today"
Onset time, aura duration, pain end time
Treatment
"Took something"
Drug, dose, time taken, degree of relief
Functional impact
(missing)
What you could not do; work missed
After-phase
(missing)
Postdrome symptoms and next-day impairment
The anatomy of an entry an adjudicator can actually use.
The days you never logged
If the record is the claim, two things follow, and both cut against how migraine apps are built.
First, you build the record before you need it. Reconstructed history, written the week you file, reads exactly like what it is and carries far less weight than a log that was kept as the attacks happened. A benefits coordinator can tell the difference between a timeline and a memoir. Second, and this is the one that quietly costs people benefits: the after-phase is incapacity too, and almost no log captures it. If your app stops the clock when the head pain lifts, you are undercounting your own disability by the twenty-four to seventy-two hours of fatigue, fog, and lingering photophobia that follow, days on which you also could not function. Count only the pain and you hand the adjudicator a smaller version of your condition than the one you actually live.
The after-phase counts, and it usually goes unlogged
A log that ends when the pain does can shave one to three impaired days off every attack in your record. On a frequency-and-duration standard like SSR 19-4p or a WH-380-E flare-up estimate, those uncounted postdrome days are not a footnote. They are the difference between a record that meets the threshold and one that falls just short.
A record built to be handed over
This is the gap we built Postdrome to close. The continuous-symptom timeline does not stop at the headache; it keeps recording through the postdrome after-phase, so the fog and residual light sensitivity of the following day land in the same record as the attack that caused them. That is the shape both an FMLA certification and an SSDI file are asking for, kept contemporaneously instead of reconstructed under deadline.
And because it is your data, you can export it whole. Hand your neurologist a clean frequency-and-duration summary before they fill out WH-380-E. Hand your attorney or your DDS examiner a longitudinal CSV instead of a shoebox of memories. The record stays on your device, and it leaves in a form someone else can read.
What we're watching
Two things sit on our desk. SSA's application of SSR 19-4p is still uneven office to office, and how examiners weigh a patient-kept log against the medical record is worth tracking as more headache claims move through on that ruling. And the Disability Claim Documentation Helper, the tool this piece pairs with, is next: point it at a date range, and it turns your logged attacks into the two views these claims run on. We would rather you never need either. If you do, the record should already be there.
Keep the continuous record these claims run on, postdrome days included, and export it whole when a form or an attorney asks. On your device, one lifetime price, no subscription.
We built Postdrome after watching people we love lose leave and benefits over thin paperwork, when their migraines were plainly disabling and no app they had tried kept a record an adjudicator could actually use. The after-phase was always the part that went missing.