I saw an ENT at the beginning of November. I had an allergic reaction at the beginning of October that brought on greatly increased sound sensitivity (I had a little bit previously from the beginning of the concussion recovery) and tinnitus. I hadn't had these pressure symptoms when I saw the ENT and they just wrote everything off as part of the concussion. I was thinking there might have been some kind of infection in the inner ear but they just looked in my ear and said go home and rest.

I'm planning to call them again on Monday and try to get a follow up. I haven't used any sinus medication. I asked a pharmacist at a drug store and she mentioned that she didn't think you should take decongestants with a concussion.

Does it seem uncommon for a symptom, like this head pressure, to come on seemingly spontaneously at 3+ months post injury?