I'm currently on azithromycin and have never had the symptoms with it that you're having, HOWEVER, I had those symptoms with zyvoxx a while ago...I put up with the nausea, stomach ache, pale clammy feeling for about a month and a half before I begged my doc to get me off of it. My thoughts on it were, "It may be helping my lungs, but if I can't enjoy my days of healthier lungs because I feel so crappy, then it isn't worth it...we can try something else." Sorry I'm not much help in reference to the azithromycin, but I know how you feel, and it wasn't worth it to me...especially if it's something that isn't getting better the longer you're on the med. The only thing I can suggest is to ask your doc about getting a Rx for Zofran or something like that. It's an anti-nausea. It didn't work for me like I had hoped, but maybe you'll get better results and still be able to get the benefits of the antibiotic.