My husband has intense burning pain in his shins and thighs and a little lower back pain. Different positions do not help. He takes hydromorphone with helps a little. He has had xrays, MRI, seen two neurosurgeons, one vascular doctor, his family physician several times, consulted a chiropractor and seen an acupunturist, and has had one cortisone injection in his spine (didn't help). The doctors say it's not his back (it looks good) and he has good circulation ( he had heart bypass surgery 5 months ago). They think it might be diabetic neuropathy (type 2 Diabetic) but it came on extremely suddenly without any other symptoms like foot numbness and tingling. Does this seem possible?