numbness in the bottom of my feet

I am experiencing numbness located at both feet and hands since four months.

what could be causing this?

I experienced numbness and tingling in my toes and which then spread to my upper feet after several weeks of taking aderol. My Dr. doesn't think it's related. Did you ever find out what the cause of your numbness was? I am doing reasearch to find something out.

Thanks for your time.