I just completed 5 day's on Levaquin for a sinus infection.Well the infection is better but the aftermath of Levaquin is far worse than the reason I started it. I feel like I have been run over by a train...pain in the arm muscles mostly, hands & fingers swollen,I tried pain medication & no help there. Very tired..all I can do is get up from the chair with great difficulty. It has also affected the strength on my legs..I got out of bed last nite and wondered if I could even walk to the bathroom without help...Please please...if this is prescribed for you, discuss these side-effects with your physician...