Most of the time Knock knees are painless at your age but as the mechanical alignment is disturbed your knees tend to wear off early. you need to fix them. we often correct the deformity
by doing osteotomy
of your femur
bone and fixing with plate of nail. you can send me the xray images to this e mail: firstname.lastname@example.org.
i will be able to suggest more after going through your reports