thanks for all the help. I'm after a little reassurance here...

legs are much looser & constant pulling into medial knee has lessened enormously. Pilates in particular seems great. However, I still have a lot of dull,achy soreness where the pes anserine area is, into top of medial calves & hamstring stiffness. I have been back onto the bike a couple of times & knees (especially right) don't mind it until about 3-4 hours later when they're very sore. Hamstrings are very tight afterwards.

Went to doc yesterday & have a referral to knee specialist. The thing that is freaking me out the most is the potential for Tendinosis in this region. There's no real swelling there & bearing in mind the length of time I've had it (>2 months) I could be at risk I guess. Given the area it's in, I'm not sure how much the conventional treatments for this would help. How on earth would you eccentrically exercise a sartorius??

I have a holiday booked in Spain on the bike in August & that's looking decidedly shaky now.