I have been suffering from shallow breathing for a couple of weeks. I also have high cholesterol and a bad anxiety disorder. After a panic attack, I went to the doctor, and they did the oxygen measuring, EKG, and chest X-ray, and everything looked fine. My question is, should I still inquire for more tests or just believe them that it is anxiety related? I read that coronary artery disease cannot be seen on a chest X-ray, and now I am worried and confused. Kindly help.