While being treated for all luekemia, I contacted shingles that caused me to me to feel like my insides caught fire. I was in and out of emergency room several times. they eventually tried a pain blocker which worked but needed a second shot and didn't get it because everything started subsiding. A few months later I started noticing it coming back but pain was manage. My cancer doctor and primary caregiver thinks the severity I am feeling in my feet and legs is from diabetes. I have severe pain since shingles Somme time unbearable like skin stretching and tearing. I am sure it worsened from the shingles. Could I be wrong? I didn't have diabetes until going through chemo,. They tell me chemo was the cause as chemo lowered my resistance causing shingles. I am on gabapentin. Not helping.