I just started this course of antibiotics at 3 pm. It is now 6:40 and I feel confused, dizzy, my arms and legs are tingling, i hear weird ringing noises, I'm disoriented, and my stomach feels weird. I'd rather just be sick than continue on with this! I usually am prescribed z pack, and I had a Dr. that was not my usual one today. Stick with z-pack, these are some weird pills.