Goodness me - aren't some medics crass? That must'vebeen frightening. So sorry to hear you're having problems after 5 years of stability. Others here report that ablation for SVT is very straightforward so let's hope that's you.
I get mild tachycardia which comes and goes for reasons that I just don't know. I enjoyed reading the report of your less than ideal experience and, well, despite that moment of confusion thanks to an unthinking doctor, it was much better to hear that the problem was electrical rather than plumbing, I'd say.
What you are experiencing sound exactly like what I experienced with SVT, specifically AVNRT. Very abruptly I started feeling heart palpitations, shortness of breath, extreme fatigue, chest pain, numbness, dizziness and intense brain fog. The symptoms got worse at a dramatic rate and I had all of these symptoms before I started having really high heart rates, the worst one I caught on my Kardia was 223bpm. I rapidly became non-functional. The first ER doc blew me off as a healthy young woman (I'm 34), the second time I was in the ER I brought print outs from my Kardia with a run of SVT I caught over 200bmp. They took that a bit more serious.
In terms of what you can do, you may consider exploring if there is a cardiologist or EP you can get into sooner. You may not want to do that if you already have a relationship, but it is worth thinking about. The first cardiologist I was referred to was booked two months out (and their office was rude), so I called a different hospital system and they were able to get me in right away and I had a far better experience. I ended up having a successful ablation before I would have even had my first appointment with the other cardiologist.
You could also request a holter monitor before you have your appointment. That way you could get good continuous readings for your EP to work with. You could probably get a referral from your primary doc or the ER. If you are worried about insurance coverage, ask about self-pay costs. My 4 day holter monitor only cost $325, which to me would be well worth it to push my care along faster.
Keep taking lots of readings on your Kardia in the meantime. My Cardiologist diagnosed me just off of the readings from my Kardia. I was wearing a holter monitor when I met with her, which she said was good because it would confirm the diagnosis, but she said she would have been confident just diagnosing me off of the Kardia readings.
I had a successful ablation on June 1 and it completely took care of the SVT. I hope this helps and you get things figured out soon, those symptoms are terrible to live with.
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