I have migraine headaches with dizziness frequently since january. now i'm having facial numbness that is up to my forehead. what is causing this?

See your doctor: This is a problem that necessitates a face-to-face meeting with your doctor. This will allow him/her to examine you, ask specific questions. And possibly order tests to find out what's wrong and what to do to help you.

Seek medical help: Have a neurologist get a better diagnosis, sometimes muscle contraction can impinge on the nerve and lead to similar sensation.