After a sphenoidetomy, it showed that I had a staph and fungal infection that wasn't clearing up so the doctor prescribed 10 days of 500 mg. of levaquin. just 2 days taking it, I developed pains in different areas of my body. I couldn't use my arms as both shoulders were affected. Then, I had edema in my lower legs and ankles. This was 5 months ago and I still have pains all over. They move around. This medicine is deadly for the body and the head. I blacked out while driving and I am sure levaquin caused it. Also, if you are having muscle problems with this drug, ask your doctor to do blood tests to see if your muscles have been damaged. I have had creatine kinase blood test 3 times and they all showed abnormally high levels. I have read that time is the only healer. Good luck!