I have had a discomfort on the left side of my face (cheek). I have had it for two months now. It comes and goes. It does not affect my daily activities, and it is not a constant pain. It does irritate my left eye sometimes, making it watery. I had a cat scan of the sinuses and a brain MRI, which show nothing. I researched trigeminal nerve, but I do not have excruciating pain and it does not hurt when I touch my face. I researched Bells Palsy, but there is no numbness or paralysis. Also researched teeth issues, but I do not have root canals or cavities. I am 40 year old male. Also ruled out MS. What else could it be?