urinary tract infection
"I take this medication with food per the instructions I was given, yet I do experience a very very severe headache with this medication that does not get better with pain medication such as Tylenol or Ibuprofen. I even tried my Sumatriptan that I normally use for migraines hoping it would help but it very sadly did nothing for my headache. The severe headache is the only symptom that is really a big issue for me and otherwise I find this medication very effective. I just wish there was something I could do about the head pain, as it is very difficult to get through the day with a throbbing migraine-like headache that cannot be treated with any type of pain medication."