On 07/05/2017 17:03, Mike Fleming wrote:
If you remember old CRT tellies which had a high-pitched whistle -
what I have is the same as that. Although it's there all the time, I'm
not normally conscious of it. And I think it was from riding
motorcycles with no ear protection (not exhaust noise, the noise of
wind rushing past a helmet).

My dad used to blame his on being a military pilot.

I have it, and it started at about the same age... and I have never
flown a Spit, or a Fury, or a Venom...

Andy