So i started out in boxing and thats how i stumbled across sherdog. this led me to the S&P and inspired me to take up some weight training. through reading the boards i put together a 5x5 program that im following pretty scrupulously. Im about a month into the program and i have made gains but i think alot of it has to do with improvement to my form over actual gain in strength. ive noticed that following day after a workout i have slight pain in my knee's when doing things like walking down stairs. my question is if this is normal to have slight pain or is a sign of bad form. ive never had any proper instruction with weights but ive done a lot of research on form and so forth through links on this site as well as any videos i could find but i wouldn't be surprised if i was still doing some stuff wrong. im using pretty light weight as im going ATG and its pretty difficult starting out. another thing worth mentioning is im 6"3' with alot of my hight in my legs. so im not sure if that makes it harder as opposed to someone with a shorter more compact build.