bacterial infection
"NP put me on zpack 5 day. I took the first dose (500 mg) yesterday at 4pm. I have diarrhea about 2 hours after I took it.  I get home from work at 10pm and start having the most severe abdominal pains that moved up to my upper abdomen, chest, and wrapped around my back. I couldn't sleep, no position helped alleviate the pain I was in. It felt like my lungs were tightening to the point I couldn't breath normal nor talk in full sentences to tell my bf what was wrong. I'm not one to go to the ER over anything but I made him drive me and on the route there the pain stopped and I was fine. So I never went in the ER but the pain was severe enough to make me go.  I ate a full meal before and drank plenty of water. I won't take it again. So scary."