Started seeing spots then now my hand is numb. What's going on? I've been trying to heal from wisdom teeth extraction. Is it from that?

Vague. Hard to say without a thorough history and exam. Question on when the wisdom teeth were extracted, severity and frequency of the spots and numbness. I would not hesitate- see the dentist/oral surgeon or emergency depart asap. It may or not be related...Getting the wisdom teeth out may have compromised your immune system and other ailments are appearing. May not even be related.