Experiencing progressively worse digestive issues

Hi guys,

I'm currently still waiting for an appointment with the gp but I thought I'd stop by here because I think I might have u.c.

For the past two months (extremely stressful--trying to find an apartment and move in nyc) I've been experiencing progressively worse digestive issues:

On and off diarrhea and constipation
Gas
Pain in lower left stomach area that radiates to my hip back and thigh that I usually feel lying down only
Sticky bm's with chunks of food in my stool
Crazy cravings for sugar
Burping , esp. After eating
Rectal bleeding

Any ideas? Does this sound like u.c.? Just trying to figure out how I can help myself before I can get to Dr. (Not for three weeks) Tia!