I had a sort of similar issue but with my right hip not long ago from squatting. The physio at the time said it was rectus fedoras and right hip adductor.
Thanks I'll have to just get myself seen by a good physio, I was on with NHS but they literally said "just stretch your quad" and this affects me daily in pain and having trouble walking! Really basic they are, and thats the polite way I can say it.