gcvmom
Here we go again!
He's been borderline diabetic for several years now. I stumbled on this article that basically says chronic high blood sugar affects the body's response to pain and can cause a tolerance to opiods...
http://diabetes.diabetesjournals.org/content/37/9/1253.abstract
http://diabetes.diabetesjournals.org/content/37/9/1253.abstract