I've taken levaquin off-and-on (maybe 6 times?) in the last few years. I currently, and have had in the past, symptoms such as headaches, sore neck glands, FATIGUE, heart-pounding in chest, and head, etc. I'm just taking shots in the dark (pow! bang! oof!), and wondering if the levaquin could have something to do with this, and how long side-effects from antibiotics could last. What do you think? Or are the symptoms pretty typical of Crohn's? BTW, Levaquin does seem to help me with pouchitis symptoms.