<s>[INST] I have been having random chest pain over the last 2 years or so. The pain comes on quick and usually lasts about 20 minutes or so. It feels like its right at my sternum. It comes on mostly when I am sleeping but has came during the day. Nothing makes it feel better, but if I can vomit it helps. I have had a ekg and my doctor says my heart looks fine. So why the sudden pain? [/INST] Thanks for your question on HCM.Since your cardiac workup is normal I think your symptoms are mostly related to anxiety. Better to avoid stress and tension. Be relax and calm.Another possibility is GERD. It is Gastroesophageal Reflux Disease. It is due to laxity of gastroesophageal sphincter. Due to this acid of the stomach tends to come up and cause the symptoms. So tty to follow these for better control.1. Avoid spicy and hot fod.avoid stress. Avoid large meals. Take frequent small meals.2. Start proton pump inhibitors. 3. Go for walk after meals.4. Keep 2-3 pillows under head in bed. </s>