urinary tract infection
"I went to the Dr and was prescribed Bactrim for a urinary tract infection. I initially took it on a empty stomach which was a mistake. Taking it with food, even crackers, prevents nausea, and most other side effects. 
I am on my 3rd full day of taking it and I have no relief from my symptoms. I'm waiting for my culture to come back and will call my Dr for something else if necessary."