My mother aged 73 years has gastritis. Recently she has been admitted in the hospital twice and got well. She also developed Hypertension during the period .She is on medicine for gastritis and hypertension. All kind of pathological tests have been done and there is no problem in any of the report. She is also not a diabetics. Now she is having burning sensation in all over her body. the doctors are also unable to diagnose the cause. She is having severe burning sensation . It starts form her legs and spreads all over her body.She is also having sleep disorder. any help please. My email id sunilkr05@gmail.com