Biaxin and couple of days

I have a sinus infection, and my doc gave me biaxin. My first dose didn't affect me, I went to bed as soon as I got home from the urgent care center, I slept well into the afternoon. When it came time to rest, I went to bed at midnight, laid there restlessly, with a very sore throat even more sore than I began with. I grabbed a throat lozenge, fell asleep for 30-45 min, weird dream but I can't remember it well. I woke up with a sore dry throat again, not even tired, frustrated, I decided to take my meds again, not having checked this website first!!! D: now my heart is racing, I'm wide awake, its 4:45 in the morning. I am crying on and off. The pain in my throat has subsided, its still scratchy, and my lymph nodes are very swollen. I can't breathe through my nose and it feels like there is still drainage in the back of my throat. I have no appetite either, I force my self to eat b/c I get stomach pains. I am wondering if I should hold off the biaxin for a couple of days and see if I improve.. because I feel like I'm simply getting worse.