so on the 8th I landed in Amsterdam from California, on the 10th I got a mild migraine, on the 12th a few adult cocktails were drank, on the 13th I woke up with a mild headache and drank a ton of water. that night I didn t feel well at all, drank water, skipped dinner and have had a lingering headache ever since. I landed back in the States on the 16th. This morning I took 3 advil and it went away, now its back. Any advice?