urinary tract infection
"I went to the ER and they determined I didn't exactly have a UTI but it was a possibility so they started me on Macrobid. I had never taken it before. Within two days I was hysterical. I had such intense migraines that I fell multiple times and couldn't see straight. My stomach was a mess, I couldn't go to the bathroom, I wanted to sleep but I couldn't fall asleep because my head was pounding too hard. I called my PCP who checked the ER records and told me I had never had a UTI to begin with and to stop the Macrobid ASAP. Once I stopped it the migraines went away, I stopped falling, my gastrointestinal system has now days later, returned to normal."