I was thinking it was a pressure sore, but it is something else. I did some research online with my symptoms and it looks like it might be sciatica. I do not have any warm feeling in the pain area or redness. I think it is pain from the sciatica nerve. Visited the doctor yesterday, and he wants me to get an ultrasound test done. Have to get it done this week and see him next week. The pain gets to be quite unbearable after sitting for a while.