16 years ago i hurt back at work i am now disabled. three hern. disk inside lower back &tear have no feeling below knees. bad painfeet ankles shin?

You have new problem: Three herniated discs in the low back will not produce the numbness and pain just below the knees. You have a nerve disease that is affecting your long sensory nerves in your legs and feet. You need to see a neurologist. There are several causes, some of which can be reversed. Some of the causes are systemic, and will cause further problems with your health if not addressed.

See below: Would be best to see a neurosurgeon for evaluation or possible pain management.