I've been recently diagnosed with arterial thoracic syndrome in both arms. I am wondering if it could be possibly related to me waking up with back pain everyday? I am an athlete who is very physically active. Before I go to bed every night I am able to touch my toes, sometimes even the floor with straight legs. However I always wake up not being able to. I remember one time two years ago after laying down for an hour for an MRI of my shoulder, I woke up and my lower back and right side was numb even though my legs were elevated on pillows. If it is not related to the TOS then what structures in lower back could be impeding on nerves or arteries? In upper exteemity many times it is the first rib and collarbone pinching on the brachial plexus... How do I fix this?