I am 23 years old and I was prescribed Levaquin 500mg for three d...

I am 23 years old and I was prescribed Levaquin 500mg for three days to treat a urinary track infection. Immediately after I drank the first dose my nose got very stuffy and it was hard for me to breath; my head felt heavy and body as well, I was afraid to go to bed. Then, I started to feel my joints a bit weak and my right knee ached. Today, a month after I drank this pill my right knee still aches and feels weak. I am so afraid I might have done damage to my body for just three days of drinking this drug. If my doctor would have told me this I would have NEVER drank it. Plus, after my treatment I still had the UTI.