I got sick after a business trip and my doctor (not my regular) prescribed Levaquin for 10 days. I only took it for six before throwing the rest out. I had a three-day long migraine (I have never had a migraine before), insomnia, and horrible nightmares, none of which I had ever experienced before. The worst part of it is, it is now more than a month later, and although the migraine subsided, I'm stuck with the insomnia and nightmares when I do fall asleep...resulting in extreme fatigue, memory loss, and practically falling asleep at work! Needless to say, I am scared to drive, though I have to get to and from work. I am a non-smoker, non-drinker, 37-year-old working mom. I'm just hoping that these side effects end soon.