bladder infection
"The first time I used this medication it was great.  Just now I was prescribed Macrobid again. It took care of the bladder infection symptoms in two days.  Next day fever was l04, headache, Fever high only one day.  nausea, fatigue, high pulse (100), stomach pain, neck pain. muscle pain, lack of appetite. Stopped taking this med after 8 days and will never take it again."