urinary tract infection
"I went to my ER with severe abdominal pain and found out it was a UTI, Dr prescribed doxycycline 100mg 2x a day and I have only taken two pills, in addition to what I took before I was discharged, the first time I took with food (sausage and mac and cheese) and I was puking and had a headache which I took advil for, second time without food and I still puked. Stopping this med and getting switched asap!!"