I have severe pain in my right buttock and somewhat less pain in my left buttock when I walk more than a hundred yards or so, or when I go up stairs. If I sit down the pain goes away almost immediately. After a short rest I can again walk a ways before the pain returns. I can stand and work in my small work shop for hours without pain. The pain only occurs when I walk forward or climb stairs. To date, I have had three spinal injections to no avail. After those, I had spinal surgery, also to no avail. I am now scheduled to see a cardiovascular specialist for possible blood flow blockage in my legs. It s beginning to seem like trial and error with no one having a clue as to what the problem really is. Any suggestions.