Have severe back spasms with left leg numbness and tingling and pain, what causes this, also left leg sometimes gives out.
See an Orthopedist ! Most of your symptoms seem to be from the spine, due either to a disk lesion or arthritis, or both, with a nerve(s) getting pinched causing the tingling/pain with numbness. Severe pain/weakness may result in your leg giving out as well. Otherwise, the leg giving out maybe due toa knee or other joint problem, like a loose body in the joint. So an orthopedist to confirm diagnosis and treated.