I,vet been taking these for 4 months now,I know they,re a small dose but they make me feel so horrible and affected my breathing, I feel I,m not the active person I used to be. I can,t remember what it was like before when I had palpitations and attacks of svt. I,m still waiting for an appointment to look into having an ablation,I,veread many posts on here that have put me off having it done, it would be just my luck for it to fail, I,ve never been good at taking drugs of any sort they affect my wellbeing, also I feel unwell. I don,t have. Confidence in my g.p at all, he wasn't,t very helpful before the episode of svt where I was admitted to hospital.. I just don,t know which way to turn at the moment!