For a few years i have had episodes where certain spots on my feet feel very hot, like a warm sensation. what could this be?

Many: Things can cause it. Do you have any systemic proble, s like diabetes, alcoholic neuropathy ? Any information can help answers it.

Nerve entrapment: If you wear high heeled shoes, or run/exercise a lot and are active, you may be inserting too much pressure on your nerves. Nerve pain is often described as sharp, shooting, burning, hot sensation. See a podiatrist or doctor for further evaluation.