Hi ! Good evening. I am Dr Shareef answering your query. Even though it might not be possible to arrive at a definite diagnosis without a physical examination of your boy friend, you might like to note the following points for him : 1) Go for a morning walk and regular exercise within your tolerance limits. 2) Take a high roughage diet and plenty of liquids. 3) It is best to have home cooked food or carry the same with him if he does eat from outside. 4) Try to exclude any component of the food which might be causing allergy to his GI tract causing this discomfort. Till then he could go for a proton pump inhibitor, and an anti spasmodic. I hope this information would help you in discussing with your family physician/treating doctor in further management of your boyfriends s problem. Please do not hesitate to ask in case of any further doubts. Thanks for choosing health care magic to clear doubts on your health problems. Wishing you an early recovery. Dr Shareef.