Amy-I'm sorry for your situation & it seems it's time to be radical! Donald and several others had great suggestions and I'd like to add to it. Pls try to eat as clean & as bland as you can. Get organic produce, eliminate ALL meat, dairy & wheat products. (watch pasta too, avoid gluten). Antibiotics kill ALL bacteria in your intestinal tract, including the "good cooties"! Get yourself & family a good water filter (PUR makes one that goes on your faucet & tells you when to change it). Take 3-4 Tbls. of active yogurt hourly (it'll help balance your gut). When you are feeling a bit better, reintroduce ONE thing weekly, see how it sets with you and continue adding foods & wait for a reaction. Good Luck to you!