Hi. I m a 22 year old female and have been having chest pain on my left side intermittently for the past several months. It only occurs at night when I m lying in bed, is made better by sitting up, and is made worse by taking deep breaths. I have been undergoing treatment (medicinal and counseling) for major depression and generalized anxiety order for the past 4 years. I do not believe that this pain is due to either anxiety nor depression, because I have never experienced this symptom before and am not under a great deal of stress. Finally my family has a history of heart disease , strokes, and high cholesterol . Should I be concerned?