Exercise and heart conditions?

123Allyxox

I was diagnosed with psvt a little over a year ago and recently I've been having episodes and sometimes when I work out, its pretty scary when I'm running and my heart rate shoots up to 250+ bpm and I get super dizzy. I know I need to see my cardiologist and I plan on it just wondering if anyone else has had similar problems, and if so do you just stay out of the gym for a bit or do different exercises.