Hello, I have a small dent in the middle of my forehead, kind of under the hairline, that sort of just appeared about 2 weeks ago. I have a tight pressure feeling around the front of my forehead. One nostril is clogged. Occasionally, I will cough, but it s pretty rare. I have been going to a chiropractor for about a year. After that physical therapy and now a osteopathic doctor. All for treatment for neck/shoulder pain from a vehicle accident back in 2013. I have asked 2 doctors about the dent and they both said don t worry about it. The symptoms seem to be increasing. Does this sound like a sinus infection?