I've not posted here for a few months because nothing had changed. I was told I had SVT after a 24 hour ECG at then end of January and been waiting to see a cardiologist ever since. I finally have a cardiology appointment at the end of this month.
In the meantime I've seen three GPs. The first prescribed 2.5 mg bisoprolol and said I might get an appointment with a cardiologist. The bisoprolol slowed my heart rate but the palpitations remained and I had some nasty side-effects but the dose was increased to 3.5 mg. For 4 days I didn't have palpitations but felt ill all the time, so the dose was dropped back to 2.5 mg.
The next GP read the letter from the hospital which said I had SVT probably originating in the atrium (well, it wouldn't start in a ventricle because then it wouldn't be SVT) and was prescribed a blood thinner, but the doctor phoned and told me not to take it a couple of hours later.
During these 4 to 5 months I'd had palpitations almost continually.
Then I saw a GP who knew me and said that at least most of the trouble could be caused by anxiety. I've suffered anxiety, depression and panic attacks for years but had stopped ant-depressants a year before. This doctor prescribed fluoxetine and a few fays later the palpitations had gone. I don't know if I have SVT still as I no longer feel my heartbeat but even when exercising I find it hard to get my heart rate over 100 and there are times when my blood pressure is borderline low. Most of the other symptoms have gone as well. I asked what the cardiologist was likely to do and my GP said it was a tick-box exercise, echo, maybe 7 day ECG and other tests.
So now I finally have my appointment but I don't know if anything will be found. In this area cardiology appointments have very long waiting lists and my best friend died of heart failure before his tests could be completed. That wasn't good for my anxiety and I was afraid to lock my door for a few months in case I had to call an ambulance. After my friend's death I have nobody with a key, no next of kin or family, and now no real friends but only acquaintances.
I don't know if SVT can be caused by anxiety and panic attacks but I do know palpitations can be caused by them.