urinary tract infection
"I was diagnosed with an antibiotic-resistant UTI in February 2015 and put on macrobid pending IV administration of a carbapenum and after two courses of cipro. I can't say for sure, but strongly suspect, that the macrobid caused an intracranial inflammatory response that precipitated rapid-onset hydrocephalus, for which I required surgical intervention in the form of a shunt. My brain felt hot and swollen, and I developed hideous prickly headaches, a shuffling gait and a tendency to walk into broom closets. When I called my doc and said I thought my brain was being killed by the stuff, she said, so, stop taking it. I'll never know if the macrobid was a cause, an agent, or happenstance, but would strongly urge extreme caution."