Hello, I understand your problem totally. Since you said that you're suffering from chest pain and vomiting. I would like to tell you hoe to differentiate chest pain originating from heart will be having symptoms like headache, palpitations, giddiness, nausea, sweating, uneasiness in the chest or tightness. Gastritis may also cause the same symptoms like, chest pain and stomach ache and also vomiting. This happens because of having spicy, fatty, stored foods. To avoid this kind if pain you need to have yoghurt, fruits and vegetables more. Anyhow recheck yourself once with GO after getting done with ECG. Thank you