My head noises began after a concussion 8 months ago. MRI and CT showed nothing. I have had two frustrating trips to an ENT consultant who has at last said that what I am hearing could be related to neck muscles and physio can help. So she says I need to see a psychologist (!!!). Fortunately, I had already worked out what was going on and have been working on relaxing my neck muscles and improving my posture with the neurophysio I see as a result of my concussion. She is doing her best ( and is not too pompous to admit she has not heard of this before ) and I am too. I have a small pulsing sound in my right ear only when I lie on my right side. I can live with that.
The other noises I have are a booming sound in the left side of my head at it's worst which can become a hum then a rumble as I relax. I can sometimes get it to disappear as I fall asleep. It is certainly less obtrusive when I wake in the night. The internet is telling me this is somatic tinnitus. I have also noticed ( bizarrely ) that I am not able to feel or hear the vibrations outside. I reckon this is sortable. I have no idea where else to look for help and advice.