question: i've been having chest pains consistently for about 2 weeks now. i went to the er last night and had chest xray, a ekg, and blood work which all came back good. the doctor said it might be costochrondritis  i've also been feeling dizzy and have had shortness of breath which may be caused by my anxiety over the chest pains. i am a 25 year old female and one of my questions is could it still be heart related with the tests i had which came back ok?