Biaxin Side Effects: I am on 500 mg x 2 and feel very tired. Cannot sleep, have awf

Biaxin Side Effects: I am on 500 mg x 2 and feel very tired. Cannot sleep, have awf http://www.medications.com/effect/view/14309 I am on 500 mg x 2 and feel very tired. Cannot sleep, have awful headache and to top it all off my sinus infection is worse than before I started meds. My upper respiratory infection is better, but I don't get the worsening of my sinus infection