Hi, I am a 19 year old male. This is my first ever post on MedHelp, and I was just wondering if anyone could give me insight to what I am feeling? I have been diagnosed with anxiety but I constantly feel my heartbeat, I try to take my pulse, and it generally ranges from 108-140? Is this okay? I went to a cardiologist three months ago and was give a stress test (treadmill) and echocardiogram, both test came back fine and my cardiologist says that he didn't find any abnormalities or enlargements. I am worried that I have tachycardia, is this normal for a 19 year old with anxiety? Any help will be much appreciated.