kidney infections
"Took Cipro for cystitis that turned into a mild kidney infection after Macrobid didn't do the trick.   No serious side effects from medication except for drowsiness a couple hours after a dose... Not so bad when you're achy from a kidney infection.  Don't freak out over reviews.  It's worth remembering that most people taking antibiotics aren't feeling so hot anyway, so side effects nausea and aches could be due to illness as much as anything else.   ALWAYS FINISH YOUR ANTIBIOTICS!"