Why do my fingers and toes go white and numb when they're cold? when they start to warm up they burn really bad. usually my hands are cold anyways.

Raynauds: You may have what's known as raynauds phenomenon. It is usually associated with autoimmune diseases. It is best to see your primary care physician and have them fully evaluate you and refer you to a rheumatologist if needed.

Raynaud's: Your description sounds like raynauds. This can occur with a variety of medical conditions and is called raynaud's phenomenon or it can run in families and is called raynaud's disease. You need an evaluation from your physician. Therapy is directed to keep you warm: gloves, dressing in warm clothing, avoid cold, etc, .

Likely Raynaud's: This is a vasospasm of the small blood vessels in the digits.