I broke a tooth 4 years ago, I had a root canal but it then broke further and I am too scared to get it taken out. About 3 years ago I started to get tightening sensations in my face and a fuzzy head like I have a really bad head cold, but bad enough to stop me from driving. I have had numerous tests done with a neurologist and endocronologist but to no avail. I now havent driven for 2 years and am at a loss as to what could cause these symptoms. I have no pain with my tooth but keep getting recurrent throat infections and bad ears. Can a bad tooth cause all those symptoms?