my bones.. questions that may just be paranoia .. . you deci

hey hey whats up whoever is reading this. i have a question tonight about bones in general.

sometimes i feel my bones grind up against each other and the make a weird noise..

as you can see thats not a question, just an introduction to what i believe to be the changing of my body..

im 21 you see, and im a normal guy, not any defects or nothing,
but you see sometimes i feel like i place my leg in a certain direction and if i do it long enough when i try to put it straight it hurts a bit , and doesn't feel normal anymore..

is it possible ive shifted my bones a slight angle and messed up my figure? it may not just be my leg.. my shoulders my arms..


please educate my stupid self.
thanks a lot