Hope they can solve the pain once and for all today, V. Tooth pain just wears me down faster than almost any other pain.
I've only had one root canal. It was done on a tooth that had a new crown but couldn't be saved anyway. The pain was so intense afer 3 days of vicodin not working (other than to keep me awake at night) that I was sweating and close to vomiting. The endodontist was being very nice explaining each step of the procedure but once he drilled through the crown the pressure was off and the anesthesia finally worked. So I asked him to please be quiet and let me sleep while he finished. 
Now, let talk about a crown that breaks 3 times. Get zirconia for a bionic tooth!
Frends know gud humors when dey is hear it. ~ Da Crockydiles of ZZE.