Knee injury question - BJJ related..

Partner went for a straight foot lock counter, my leg got tangled in a scramble but didn't feel any pain at all. Next day it's fine except when I crouch , it hurts like a mofo but I can still walk and bend the knee.

 

anyone been through this? Trying to give it some time before I run off to the doctor. Been icing, it occasionally has a dull ache... 

Go to the doctor, you could have torn something. Something similar happened to me I had a partial tear never took care of it and ended up completely tearing my lcl doing some mundane stuff.