How Can severe Abdominal Pain Along With Chest Pain Be Treated?

My husbands symptoms are , since over a year , weight loss, server adominal pain, at driffernt odd times during the day Wakes him from his. Sleep , wakes with it in mornings chest pain , similar to a heart attack , but it s not a heart attack ( he had had a heart attack in 2015 march ) but all theses have been going on since after this . He has been gone to hospital numberous time , they tell him nothing wrong , maybe ulcer , he has. Been taking medication for ulcer for years , and things have been fine till recently , what is causing this sevre pain , any suggestions to further ask his dr to check for , would heart medication. do this to his stomach if he s got on going ulcers he also has medication to restless syndrome