sinusitis
"I have been on clarithromycin for about 4 days now. It gives me a terrible taste in my mouth. I'm constantly thirsty, which leads to frequent bathroom breaks and the second night I was up most of the night sleeping very lightly and having anxiety. I haven't slept well at all in the 4 days that I have taken it and I notice its causing my heart to palpitate. I have a terrible sinus infection and do want to stop the medicines, but I feel like a zombie and I'm looking quite pale. "