Your sinuses are connected to your ears and your teeth, so all can be affected.
I went by my personal experience. I have had both surgically and non surgically removed wisdoms and only had the pain and fever with the surgically removed ones. I guess I was lucky. I didn't have any nasal symptoms with either method.
I worked at an oral surgery clinic for a couple of years and what the above poster said is not true. It is entirely normal to experience pain and have a fever for the first week to even ten days after surgery, regardless of whether they were surgically removed or not. The worst days for pain are days three and four, which is today. If you aren't better by Monday, I would call the surgeon and schedule a post-op visit, as you could have a dry socket. The best thing to do right now is keep the site clean (do at least a few salt water rinses each day), ice your face if need be, and take up to 800 mg of Ibuprofen every four hours.
Was it a easy extraction where they just pulled it out? if so you shouldn't have pain. I would call the dentist and report it. If it was a surgical extraction I would expect some pain, and low grade fever but not the sinuses being blocked.