You might want to try and get some probiotics like acidophilus, you can get them at any grocery store now it seems, I get mine from GNC and that is what my GI recommends for me to take. They might be able to help things go through your intestines with less problems until you can get some help from the doctor. Even if you don't have UC they will still help with changing the flora in your colon and make it easier to eat. I would definitely stay away from the gummi candy, sometimes the artificial sweeteners can cause problems. I agree with trying to get a supplement drink, try drinking an ensure in the morning instead of the candy and soda.
I would definitely get your doc to refer you to a GI, but he is at least trying to find something by doing the stool test. Trust me nothing you can say on here we haven't all been through. I just did another stool test 2 weeks ago. Hang in there, we are all here for you. Let us know what the doctor says and if he puts you on any medication. But I would start on the probiotics as soon as possible. Don't get the new "colon health" meds that are coming out now, they hardly have any probiotics in them at all. Until then (((((((HUGS))))))
Diag. Aug 06 (Proctosigmoiditis), finally diagnosed with Fibromyalgia 12 August 08, Paxil (1 a day) for Depression & anxiety, Azathioprine, Morphine (three a day) for pain, Flexeril (three a day), Tramadol (as needed for breakthrough pain), Fioircit (for migrains), Phenergran (for nausea), Omeprazole (for gerd from the pred), Ambien (to actually get some sleep every once in a while), Calcium (for osteopenia), aloe juice (2Xs a day), B-12 (injections weekly and tabs daily), Folic Acid (1 tab daily), Tylenol Sinus (three times a day, darn you Florida), Acidophilus (of course).