urinary tract infection
"Can't even explain how bad this made me feel.  SERIOUSLY thought I was dying.  Chills...Sweating ...throwing up...I actually passed out on my bathroom bath. My chest pain was so bad I thought I was having a heart attack. No desire to eat...I've never had a problem with meds like this before in my life. Never again. I took it for 2 days and stopped.  Be cautious."