Hello, I am so sorry you are going through this after Covid, and it does sound like runs of SVT. I also had Covid (in 2023) and like you it was a mild case, but I had severe fatigue for a few months. And then, out of the blue, I developed atrial fibrillation with occasional SVT.

At first episodes were months apart, but then they started increasing with symptoms like flushing and dizziness. Eventually I decided to get an ablation, and just had my second one (with a Watchman device to prevent clots) on May 1. BTW, my doctors all agree that the onset and progression of what happened to me was related to getting Covid.

So I recommend you see not just a cardiologist, but an electrophysiologist who can check the electrical impulses in your heart and make recommendations.

PS: after my second May 1 ablation I had a complication: pericardial effusion which means the sac around my heart developed fluid. It's mild and hopefully going away, but tired all the time. I have not had a recurrence of AFib but I do have frequent premature beats (PVCs primarily) and occasional SVT but at much lower rates (125 bpm while sleeping, for ex.). After an ablation you have a three month period of healing and heart irritability. I am hoping for a good outcome. Wishing you all the best.