1. Yo
  2. You need to replace lost fluids and electrolytes. Take small sips of coconut water or Gatorade and lots of water (but go slow--if you drink too quickly it might upset your stomach.
    Tomorrow, ask someone to bring you some veggie or chicken broth. Then add some dry toast when you feel up to it. Small bites until you can keep it down comfortably. Feel better!
    Suggested by @gabimoskowitz
  3. Gatorade and Pho
    Suggested by @jgmosko
  4. Put on movies you know so well you can sleep through without regret. But the distraction may be nice to keep you from focusing on the discomfort...
    Suggested by @Grosstastic
  5. Activated Charcoal
    This is late so it's probably won't help now. But if you have food poisoning, activated charcoal will neutralize it as well work against other toxins. But you have to take it fairly soon after you have gotten sick. Basically it's the real world equivalent to the Harry Potter World bezoar, the magical substance that Harry used to save Ron when he was accidentally poisoned instead of Dumbledore.
    Suggested by @eatthelove