Pseudovent and pain meds

I've been taking this stuff for 8 days now. My maxillofacial surgeon is making me take it for a sinus pocket after a wisdom tooth extraction. I didn't sleep for three days straight and had horrible anxiety. I was allergic to my pain meds and couldn't take them so had no other medication that this could be caused by. My heart has been racing, and the first few hours after I take it, it is difficult to breathe. I've been ridiculously irritable, and on the fifth night I had thoughts of suicide because of the anxiety. I am groggy, have trouble reading and focusing my vision, and am very dizzy. The surgeon just told me to stay on it and toughen up. I can't concentrate, I can't drive, I feel like I can't function. I am miserable.