Hi Angie, I have numb feet also. I find that massaging my feet daily with a mositurizing lotion makes them feel better. I also have to wear compression socks daily to prevent swelling in my legs so my feet always feel shrink wrapped. There is another discussion you might like to join in to read what others with similar symptoms have shared:
-- Neuropathy: Numbness only, no pain: https://connect.mayoclinic.org/discussion/neuropathy-numbness-only-no-pain/

You mentioned diabetes as the cause. Have you made any changes to help with your diabetes?