<s>[INST] My husband has been having discomfort after eating fatty or greasy food in his upper left part of his chest. I noticed that when this happens that his upper left part of his chest gets swollen and it makes his left arm tingly and go numb. If I press down on the swollen area the pain shoots down his arm. When he eats healthy all the symptoms goes away. When we went to the doctor they did a stress test and a EKG and everything came back fine. Please help!! [/INST] Thanks for your question on Chat Doctor. Since his all cardiac work up is normal, I think it is HERD (Castro Esophageal Reflux Disease). In this gastroesophageal sphincter has lost its tightness. So the acid of the stomach tends to come up in the esophagus and cause the symptoms. Better to follow these for control of HERD.1. Avoid hot and spicy food2. Avoid heavy meals, rather take frequent small meals.3. Avoid stress and tension.4. Take proton pump inhibitors.5. Go for walk after meals.6. Keep 2-3 pillows under your head in bed. </s>