Coldness in jaw bone

Hi, I had one root canal on #30 and it was fine.  Two weeks later, root canal on #15-part of my tooth fell out, then the sealent came out. (I was not chewing anything, I was drinking water!) My jaw bone has not been the same since.  I was diagnosed with tmj years ago and use a night guard that keeps my back teeth from touching.  This pain is different than past tmj pain.  I can only describe it as coldness in the bone.  I was given steroids which I thought helped.  I went last week to get temporary crown on #30 and did okay until yesterday..now the pain is back and becoming debilating.  I have been resting the jaw, eating pudding, yogurt, etc, wearing my guard during the day, ibuprofen and neurontin.  should i continue to assume it is tmj and treat accordingly or go see doctor or have dentist x-ray jaw bone,etc.   Please help.  thank you for your time.

[scottma]

Imaging study of problematic anatomic site is essential. If no structural pathology identified, seeing an orofacial pain specialist is advised.