Are you doing anything about it? Sounds like a good Physio would be able to give you some strengthening exercises which would be effective.
Yes, I am sure they would, but would I do the exercises?
Maybe there are other factors at work.
I never do the exercises they (physios) give me, either.
I'm just useless, with no will power.....
This has to change - or I/we will be having curtailed careers ...... :-( (Charlie's quite good about doing exercises, though).
Hope it improves soon anyway.