bacterial infection
"I was prescribed this med for  a bacterial infection.  And here i am awake at 3.30 in the morning feeling nauseated, anxious and unable to breath well.  This is day 1 on the pill. I took 400 mg in the morning and i was fine, and 400 mg at night. I fell asleep and suddenly i woke up feeling really weird.  I used to suffer from an anxiety disorder and i thought maybe my anxiety is back after a whole year, but then i remembered the antibiotic! Checked the side effects and bingo.  I really hope the side effects will subside soon"