I have been taking Levaquin since 12th of June 2008, last Thursday. When I got up on the 16th of June, the Monday morning, I had so much pain in my leg calf that I can hardly walk. I thought it would go away but it has not. I just looked up on the internet and found this and other websites and realized it might be the Levaquin side effect. I just called the doctor who prescribed the medicine and they said they will call me back.