Yikes rob, you saw stars? My thought are get that Maine frozen butt of yours over to the doctor's and get that jaw looked at. That would be very scarey and you are gonna be worrying about that happening again.
Hugsss hope you are feeling better, but that jaw is still sore. I've been having problems on and off with my jaw, but it's been of a different nature. Swelling causing my jaw pain. It's under control now so the jaw isn't bothering me.
Go see your doctor
I'll be expecting a full report :P