I was diagnosed with cystitis (bladder infection) a couple of weeks ago during which, I went to the urinals too often and felt irritating sensations around my abdomen as well as sensitivity on the tip of my penis. I was prescribed levofloxacin (500mg/2 times daily) and vitamin C (500mg/2 times daily) for a week. But I only felt better occasionally and after a week the doctor had my blood and urine tested again yesterday and found that they were both in normal condition. But today I noticed that I have been to the urinals more often than normal, as if the problem hasn t really changed much. I also began feeling irritated by the sensations and the unstoppable urge to urinate. I am afraid to take levofloxacin again, because after over a week of using it I began to feel pain on my tendons. What am I supposed to do now?