A few months ago, I had a pretty bad cavity so I went to my dentist to have it filled. Everything seemed to go well but a few weeks later I started having this weird pain in the area of my sinuses (on the left side of my face). Naturally, I didn't think it could be related to my teeth and I took Motrin and cold medicine for it. This helped at first but over time it became extremely painful and absolutely nothing helped the pain. The pain also started changing locations. It had moved from my sinuses into my upper and lower jaw. I still didn't think it was any of my teeth because I don't have any cavities in that area except for the one I just had filled. But I figured I should make an appointment with my dentist just to make sure.   So I tried to make an appointment but they couldn't get me in for two weeks. At this point, I was in horrible pain and it was honestly night and day. I could barely eat or drink anything and I couldn't get any sleep so I was becoming more and more sleep…