I have three finger tips on my left hand that keep turning completely white and tingle and actually hurt because they are so cold. it happends about 2-4 times a day. my right hand has started doing it now and again, but not half as often.

See a Physician : You ate describing a condition called Raynaud's Phenomenon. It is caused by blood vessels the go into spasm when exposed to cold conditions. Treatment is determined by the underlying cause. See a Physician to determine the cause and treatment. In the mean time try to keep the hands warm

?Raynaud's: Sounds like Raynaud's phenomenon, and suggest you contact your physician, as these vascular events may well be a sign of issues that need to be addressed. Does not sound like nerve issue.

New symptoms?: If you are having such symptoms, they may be Raynaud Phenomenon, which is often due to vasospasm. However, and in particular, if these are new symptoms you should be evaluated for other potential associated disorders given your age over 40 years.