Hi ! I had gone through your question and I understand your concern . Yes sometimes heart dissease it can be exsperienced like gastritis symptoms , nause , vomiting heartburn we call them atipical presentation of heart dissease ( in the rather case we will think angina pectoris) Sometimes there are not to may specific think to distinguish but when the hurtburn is from the stomach ( reflux) it dissapear when we give antacid to the patient ( ranitidine ), the patient have regurgitansion also . Pain from peptic ulcer worse 3 hour after eating . In Heart problem the pain is most of the case tightness , heaviness or pressure sharp chest pain that can spread to the neck and the left arm .last 20-30 min When the pain start after physical exscercise it is from the heart. If your father have episodes with hypertension and the pain come should consider from heart. .Other cardiovascular symptoms : hypotension, bradicardia) slow heart rate ), sometimes hypertension, tachycardia ( fast heart rate ). When you suspect call the hospital that will do an ECG to confirm the diagnosis. Hope these help you ! Thank you for using HCM