The parts of the knee that are really dangerous to hurt are helpfully tucked away inside the bone: if banging your knees into something while walking...
The bar needs to be like a half inch lower on your back. Your back angle is changing all the way down because the bar isn't quite in the right place:...
It is extremely unlikely that the "stress of eating" is causing you to wake up in the middle of the night. Does eating without training produce this...
Do you mean you've been working with a "SSC" (Starting Strength coach) or a "SCC" (strength and conditioning coach). The former is a special case of...