Hi.. I know this is random and all but I am just really having a hard time with it lately and could use any sort of comfort with peoples related experiences. I was diagnosed with Wolff-Parkinson-White when I was 14 and had an ablation when I was 15.. They found 3 extra passageways (normal is 1) and the ablation was a 100% success, I have not had any problems with it since. But this July (I'm 19 now) I was having more heart issues so I went to the hospital and they told me I have Sinus Tachycardia.. Which is palpitations but they are completely normal beats coming from the proper part of the heart (WPW was abnormal and would show up on EKGs.) I'm on a beta blocker med to help keep the palpitations at bay but there are still times when I have symptoms off and on for days on end and now it's causing me to miss work because I just can't go about my day normally with an irregular/pounding heart beat and the anxiety that goes with it.. as well as the fact that even small amounts of exertion (ie going up stairs or walking quickly) pretty much has me out of breath because my heart will speed up far more than it needs to. I'm really trying to learn to live with this, but when it's acting up this much it's really difficult.. so anybody with related experiences, please share!