So sorry to hear of this hard time you are having Samsara. Tooth pain is the pits. I've had a couple of root canals and I will always remember the pain I suffered before having the first one. Four Mersyndol didn't touch it and I ended up having to go home from work. What made it worse was that I had to catch a train and suffer the pain all the way home! Grrrrrrrrrrrrrrrrrrrr.....

I know you said you didn't want the tooth removed because it's your last molar, but I think you need to ask yourself if the pain and all the associated CNS issues you are having right now is worth it?

Wishing you all the good luck and vibes that you both need and deserve. Also sendings loads of healing energy.