I'm also a chronic migraine sufferer, and I totally agree with the above advice. My doctor has long advised me to take, in addition to my prescription migraine abortive, a dose of Advil (ibuprofen), Benedryl (diphenhydramine), and either coffee or Coke/Pepsi for the caffeine. And definitely no alcohol, especially the wine.

As for everything you experienced on your flight, I have no explanation. Probably not related to the medication.