I took Levaquin for 20 days for a sinus infection. It wasn't unt...

I took Levaquin for 20 days for a sinus infection. It wasn't until that last day that my right knee was in tremendous pain; I couldn't straighten it out or really move it. It's been almost 2 weeks since I stopped the Levaquin and my right knee is still painful. It feels really tight and if I turn my leg I get a sharp pain. I have to walk gingerly or I will have a shooting pain in my knee. I also have pain in my elbows and my right thumb, along with sporadic headaches. The pain seems to change daily. Does anyone have any experience as to whether this thing will go away -- every?