im 27 and thought i was in good shape. i was given levaquin for an upper resp. infect that the z-pack didnt cure. i was given 7 day dose, and since day one my legs have been sore and achey. then my wrists and elbows became sore, for a minute i thought that i was having hallucinations, i thought no way. then my ankle joint and knee joints begun hurting SOOOO bad, i had a hard time falling asleep, and became scared over my legs, afraid to call the doctor back thinking that it was something else, after reading all of your side affects, i am SO glad to hear that i am not the only one, i still have 3 more of these lovely pills to take, and i do plan on getting in touch with the doc now. i never had a hard time staying awake, i would take it at night and could never get to sleep, also seemed to have slight anxiety, the worst of it all is my legs! i want to cry they hurt so bad, and i have two little ones at home, its not like i can lay around all day!!