Does anyone have any idea how long I will wait to see a cardiologist? I had an abnormal echo a few weeks ago with brightness around heart whatever that means. I'm having daily breathing problems and can't sleep properly and my heart is racing all the time with my pulse going up to a hundred at rest. I keep going back to my doctor but apart from giving me an inhaler, that's it. My quality of life isn't very good at the moment. I've gone from working out five times a week to getting extremely out of breath just walking upstairs?