I'm sorry that your day was ruined like that.
I hate it when stuff like that happens!
I agree with everyone else, focus on rehydrating yourself today. Gatorade is nasty...but it should help. Your other option is eating something salty and drinking plenty of water. Drinks with caffeine may or may not help you, as a vasoconstrictor it can help with headaches but it also causes dehydration.
The standard dark room with a cool washcloth may help you some, or at least help you to relax. If you can tolerate having your neck and head rubbed, have someone do that for you. Tense muscles can make the migraine worse or harder to get rid of.
How's your blood pressure? High or low? If that factors in then migraine meds may not help at all.
I hope you get to feeling better.