My grandma is 76 year old and a heart patient as well since last 5 months she is having sever stomachache she doesn’t even know the exact part where the pain is arising. The pain stays for sometimes it happens 2 to 3 times a day and during the pain she also feels vomit. She doesn’t feel hungry and sometimes she skip food as well. she can’t sleep peacefully and stay awake all night, She also lost so much weight. I don’t know it’s a heart issue or digestive Please I need your help