hello sir I m feeling too much with pain in my all digestive syistem as I know it causes when I take cold drinking or eating esp.water,onion,cucumber,potatoes,watermelon,bana,and mutton etc.your advise in this regard every type of medicines for ulcer is used,from 30 years upto now,are this is an alergy type or not,I m 40. please. thanks Sohail