Your headache is bad enough.
Your app shouldn't make it worse.
39 million Americans get migraines. Doctors tell you to keep a diary. But every headache app is so bloated with weather tracking, food logs, and medication cross-references that it's easier to just scribble on a Post-it note.
When you're mid-migraine, you shouldn't need to navigate 12 screens and fill out 50 fields. You need to log a number and go lie down in a dark room.
Slide your intensity. Tap where it hurts. Add a note if you want. That's the whole app. Because when your head is splitting, you shouldn't need a tutorial to prove it.