Why Do I Feel Pulling and Numbness in My Leg?

Hi I'm a 16 yo male and I have poor posture, I used to think that I have minor kyphosis , forward neck , rounded shoulders with scapular winging for which I had consulted a orthopedic doctor he told me to do spine and chest xray, After looking at the xray he told me that my posture is not seen as a deformity and it will cause no problems THE FINDINGS IN MY XRAY REPORT ARE ~Xray report of lumbo sacral spine (ap+lat) • sacralization of lumbar vertebra noted • straightening of lumbar curvature noted • reduced disc space noted between lumbar vertebrae ~Xray report of cervical spine (ap+lat) •Mild straightening of cervical curvature noted •bilateral cervical ribs noted •impression - cervical spondylosis ..........but I think due to my posture I get injuries while heavy workout and few months before I got injured while doing wide arm push up. The injury resulted in pain in shoulders for 3 days and a lower soilder for days until I watched a video on YT how to stretch to fix it.......how ever it was gone and now Im left with uneven collar bones at the chest due to which the mobility is different in both hands. WHAT SHOULD I DO?

Male | 16

I had an accident in 2005 August, I had a brachial plexus injury, I can't move my left hand. My left shoulder, wrist, elbow fused in CMC Vellore 10 Years ago. Any further treatment in India?