Have you gone to the doctor yet? Food poisoning was one of the worst experiences of my life, and it can quickly lead to dehydration. Unfortunately, it's tough to tell the difference between dehydration and food poisoning after a while. You can have it all out of your system and still be miserable, throwing up constantly just because your body thinks its still sick with all that loss of water. Honestly, an getting an IV (in my case, four IVs) is the best thing for you if you've been at this all day.

Good luck though, I wish you the best! Getting sympathy pains just thinking about it x'3

Art ideassssssss: Maybe stuff involving silks? Like a belly dancer~ And windddddd. Get the hair flowing and looking alive.

I find that real black licorice, or anisseed in warm milk, makes my tummy feel better. However, some people can't stand the stuff so it's hit or miss.
And drink lots of water and eat bananas, they taste the same both ways and are soothing on your throat.

Draw more deer! Or rabbits, really anything with one of those cute flippy tails!

I have no good tips for tummy aches I'm afraid.

As for ideas, have you ever tried drawing something gooey, like a goo girl or transformation by goo, or drippy latex paint sort of thing?

Baking soda mixed with water helps immediately cure nausea.
Pepto Bismal lines the stomach and esophogus to prevent vomit backlash.
Drink plenty of water, eat saltine crackers, and try some Vernor's ginger ale from HEB.

THESE HAVE NEVER FAILED ME!

OH, also try peppermint tea. It cures nausea as well.
If you need more help, I'm a phone call away.