I'm a small guy, but I can put up decent weight on squats. My lower body is stronger than my upper body. Since I started squats (a long time ago), my legs looks strange to some people. Just diagonally upward (and inside) of my kneecaps are bulges (lower quadriceps, I guess) that look sort of like second kneecaps. They're actually more prominent than my real kneecaps.
What I'd like to know is: is this normal? Is it possible I've been doing squats with the wrong form this whole time (and quadriceps are taking more load than they're supposed to, for example)? I don't worry about how my legs look - I just want to be sure I'm doing the exercise right.