I went to the doctor's office recently because I was pretty sure ...

I went to the doctor's office recently because I was pretty sure I had a sinus infection...and it turns out I did. My doctor prescribed me biaxin and told me that I should stay on this for at least 3 weeks until the infection clears up.. When I first started taking this medication, everything was fine....but now things seem to be worse.. I am on week two of this medicine, and my sinus infection has developed into a terrible cold.. I have a funny smell in my nose(I don't know if it's because of the cold or the medicine) I have an AWFUL metallic taste in my mouth, sometimes I have severe abdominal cramping, and for the last two weeks I've had difficulty sleeping.. I will fall asleep around 12:00 p.m but find myself awake by 4 am and then I have trouble falling asleep(when I do sleep I have terrible nightmares).. Almost every time I wake up in the middle of the night, I have this nasty taste in my mouth... I do find that when I eat certain foods it helps to stop the metallic taste.. I have adhd/ocd and I have noticed that this has gotten much WORSE since I started taking the medicine...I feel space out all the time and dizzy and my vision is blurry.. I have a funny smell in my nose right now and difficulty breathing sometimes.. I am about to call the doctor and find out if I should stop taking this, or just keep taking it for the next 5 days.. I just can't handle it anymore because I feel like I'm going insane.. I don't even know as of now if I still have a sinus infection.. Please do me a favor-if you are considering taking this medication please avoid it at all costs because it will make you feel like complete crap.. There are other medicines that you can take I am sure.. I don't even know why this is on the market....it's worse than the birth control pill!