I have tingling in my feet and hands what could cause this?

Tingling. It could be an electrolyte issue, have your doctor check a BMP level. Also it could be neuropathy from a compressed nerve, if this is a case the way to tel is by getting a EMG study. Also it could be a thyroid related problem, or a vitamin B12 defeciency, or worsening of diabetes. See your PCP for evaluation. .