Forgot more useful things that you'll want on-hand:
-Green Tea (revitalizing)
-Ibuprofen (muscle aches)
-Excedrin (headaches)
-Benadryl (headaches, sleep aid, takes the "edge off")
-Epsom Salt or frizzy, girly boutique bath bombs if you can find them. obvious.
-MILK (or your friendly milk substitute) (it's easier to drink your calories than eat them, also calms the stomach)
-Pepto Bismol
IF YOU TRUST YOURSELF (not recommended, but if desperation strikes):
-Mild Benzodiazepine (i.e. .5mg
clonazepam, you don't want any problems with this stuff, nor to be taking it daily)
-Marijuana (if you really, really, really, really have no appetite and can keep your priorities in order)