I don't often post but when I do everyone is so helpful.
I posted a while ago asking if it's possible to ask your Dr for a certain surgery as my knees are getting worse.
Well after 13 years of pain I have an official diagnosis of Chondromylasi Patella.
The plan is Physio (which I've been doing for 2/3 years now). If no improvement then I will be referred to a surgeon to assess my suitability for surgery.
Thank you everyone who provided info & support. It's highly appreciated.