What is the cause of Peripheral Neuropathy, and what is a persons life span that has it in feet and legs? I have no balance, and no Diabetes. Toes have little or no movement, lower legs are ice cold during daytime and very hot when sleeping at night (causing restlessness) this has been ongoing for 4-5 yrs. It ends at my knees. Will this go any further in my body? Was a very active and high level tennis player. Outside activities included biking, boating, walking, and tennis. Cannot do any of these things now, and it is stressful. Is there an answer???????

Summarized question: What causes peripheral neuropathy?