I've been having a thumping sensation at the back of my head when sitting or lying in bed. If I lie on my right side I can hear it, its loud enough to stop me going to sleep. I'm stone deaf on the other side, my hearing went with my AN operation in 1987, the surgeon thought he'd saved the nerve but apparently not. So far I've had blood pressure test and an MRI scan, tried Amtryptiline too. Doctor says not to worry about it but its not that pleasant to live with. The scan showed some thickening of the scar tissue from my old surgery and the left side auditiry nerves are "jumbled up" whatever that means. The last time a GP said to me my increasing deafness on my left side was "JUST DUE TO MY AGE" HE TURNED OUT TO BE COMPLETELY WRONG, The thump goes at the same speed as my pulse, had it about six months now?