I have pain in the back of my mouth (my tough, roof, and wisdom teeth)?

It hurts when I swallow and eat. it started May 7, 2011. It hurts to the point of me crying. When I try to touch the roof of my mouth it feels swollen and it really hurts. To be honest I do smoke hemp and My mouth does get dry and I do have to get my wisdom teeth pull also. So can someone help me.