thanx for writing to us.
well u should immedieatly consult a gastroentrologist .
get a full upper abdomen scan done.
ur symptoms might be due to stomach or duodenal ulcer
.also gall stone is another reason u can look for.
burning sensation in hands and feet suggest b12 deficiency as your body is not able to assimilate the food well .
go for a scan ,endoscopy
and blood test