Pain - Just wondering if anyone know's anything about knock knees? I've been having a lot of lower?

Sugar,
If my anatomy and physiology doesn't fail me, knock knees are caused by a congenital abnormality in your femur bones, they are either bowed or twisted from the way you positioned yourself in your mothers uterus. It gets kind of cramped in there, and babies assume positions that are comfortable to them. Usually, as one grows and starts walking, the bones, along with the muscle development, straighten these bones into the proper position. Yours did not, and the malformation is causing stress on other parts of you skeletal system ... your back. I don't think you'll be able to find an orthopedic surgeon willing or able to straighten them out now, but ne er say never in medicine. If, in fact, this is the situation with you, might be worth a trip to the ortho doc for an official diagnosis.

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As a side bar, my sons legs were so bowed when he was born, docs wantedr to put him in braces. I said ... let's give it until he starts walking and them decide. They straightened out by themselves. Without any medical intervention.
I can't tell you exactly what's wrong with you, not every body is the same, bit an xray or three will tell you what you're dealing with, personally.
Best wishes to the sugar.
Peace,
Hippie