I am a 19 year old female that recently has been having some chest pain at night. My EKG came back normal, but I have a family history of heart disease. I am not overweight and am generally healthy. However, I suffer from anxiety disorders. I have pain in my chest (sternum area and under the left breast), some shortness of breath, and currently some jaw pain. Is this any cause to worry? MY doctor said it was likely acid reflux, but it's still concerning....