I drank a lot of coffee until I forgot to pack instant on a 3 day backpacking trip. Headache the whole time that I cured in 5 minutes by drinking a mt dew the minute we got back to civilization. Figured it wasn't worth it and weaned off.

Then it turned out my rate of getting migraines dropped off considerably. But I love coffee, so I tried decaf. Migraines returned to being more frequent. So that was that.

If I could get it without the side effects, I surely would. Right now I'm drinking a hot cup of delicious roasted barley tea. But it's not the same.