Levaquin Side Effects: I started taking Levaquin in December for a respiratory infection http://www.medications.com/effect/view/26766 I started taking Levaquin in December for a respiratory infection (500mg for 10 days). The only side effects I noticed while taking it was a terrible headache, insomnia and anxiety. I experienced that after the first dose. The next day I called my Dr. to Thanks for the heads up on the vitamins. As a lifelong drummer wi Wed, 30 Jan 2008 10:54:50 -0500 http://www.medications.com/effect/view/26766?item=4488 Thanks for the heads up on the vitamins. As a lifelong drummer with a history of knee surgeries I've already been taking vitamins and osteo joint supplements for yrs, but will try increasing doses of the ones you suggest. Also, the doctor who re-examined m http://www.medications.com/effect/view/26766?item=4488 It is 2 weeks since I only took 2 pills and had horrible nightmar Tue, 09 Sep 2008 06:36:26 -0400 http://www.medications.com/effect/view/26766?item=12175 It is 2 weeks since I only took 2 pills and had horrible nightmares. Now my head hurts my ribs and fingers. sometimes my knee will give me great pain. I hope you get better. John http://www.medications.com/effect/view/26766?item=12175