I have been taking 500mg of Levaquin for 13 days of a 14 day prescription. After 9 days I started to experience joint pain, primarily in my knees, fingers, toes and plantar surface of my feet. Suspecting the Levaquin, I found this site and was surprised to see others with the same problems. While I did not associate it with the drug until I read the reports from others, I began having extremely vivid dreams from the day I started taking the prescription. Also developed hives on day 7. I've never previously had any reaction to an antibiotic (or any other drug).