Is there anything that started the pain originally? Ever get hit sideways or anything like that? Reason I ask is that the inside of my left knee does the same thing. My 5 year old hit my knee and bent it inward awkwardly, but not horribly so. Anyway, after a couple weeks it was still hurting when I started to squat, but magically disappeared as I got into heavier weights.
Well, upon video evidence, my early squats are very deep, my later ones not so much. It really only hurts when I am actually sitting on my calves. But, I had it checked out anyway and it turns out I do have a slightly torn meniscus. It is not enough of a worry to actually schedule a surgery to repair it, but it is there. My doc says it can go either way and as long as it doesn't affect my mobility or get any worse, you can live with it. If it gets worse or actually affects mobility, then get it taken care of.
Just a thought. I'd get the MRI and see what is actually going on. Then make some decisions.
I am Anton Zdravko Martin!
Best meet lifts: Sq 150 Kg (330 lb), Bench 120 Kg (264), DL 160 (352) @89 Kg (197)
Best gym lifts: Sq 375, Bench 275 (pause), DL 370 @205 or less
Goals beyond my wildest dreams, 600 Kg raw total, 200/160/240
Hack away at anything which isn't essential. Do what you love, and do it often. Fazc.