urinary tract infection
"After being diagnosed with a UTI, I was given macrobid 100mg 2xday. The first day was fine. On the second day, I noticed a lot of stomach pain after taking each dose. On the 3rd day, I woke up with a headache, abdominal pain, and a weak and ill feeling. I called my doctor to see if i could get switched to another medication. I felt ill, foggy headed and anxious the rest of that day. I did not like this medication and won't take it again."