chlamydia infection
"I found out I had chlamydia on Friday, went into the doctors again today (monday) and was given two 500mg tablets to take. I drove to work straight after and I can't describe the pain I was feeling. I was laying down at work for 2 hours with the worst stomach pains I have ever experienced.  Ended up in the toilet with diarrhea and couldn't move. Still have cramping and am now at home laying in bed. Scared to eat now as I don't want to run back to the toilet. I hope this goes away. I have never felt so sick from taking medication but if the chlymidia is gone then I guess it's worth it."