I had a successful ablation for SVT. I am also recovering from giant cell arteritis which means that I am on prednisolone and aspirin. For some time I have found that in the morning, after having breakfast my heart rate goes up to 100 to 130 if I exert myself at all, even walking upstairs. For the rest of the morning at least I have to be careful, and frequently have to stop to get my breath. I assumed this was because of the prednisolone, but now I am on only 1mg I am doubting this, especially as several times recently I have forgotten to take my pills until well after breakfast, and still have the rapid heartbeat. I am due to see my EP in a couple of weeks, but I wondered if anyone on here has had this.