My husband was diagnosed with SVT's in his early 20's and had an ablation in '97. He took various medications after that as he developed (or noticed) quite a few pvc's. By the time he had an ablation for pvc's in 2006 he was having 20,000 a day or so. A few days after his ablation he noticed that it was hard to breathe and his chest felt really heavy. He has had a couple of episodes where he has almost blacked out and felt really dizzy and lightheaded. It passes and then he is the same again. He had one episode where he could get no pulse at all was blacking out and then had a very hard thud in his chest and felt his heart kick in. He has had everything from stress test to monitors and is even wearing a monitor under his skin to see what is going on. From every standpoint he is a healthy, fit 40 year old. Has anyone else felt like this post-pvc ablation?