Hi thanks guys for your replies.
mnmnmn-I'm pretty sure that's what happened to me, the toprol lowered my bp causing the tachy, just didn't feel like my "normal" svt. Glad to hear your ablation wasn't too bad. My doctor says I should have it, that it would completely get rid of this svt, but I'm still hesitant (uh maybe scared is a better word

) want to control with meds if I can find one that will work well.
Cheers-I go for another checkup in 2wks so will stay on this xl till then, see if I can't get used to it. Would be interesting to try a non-xl, see if it would help me more the way it did for you.
Lenin-I hear ya about the "promotion" stuff. Will def. mention sotalol when I go back.
This toprol is giving me weird insomnia, feel like I'm in slow motion but can't fall asleep, supposed to take at bedtime, wonder if it really matters, if morning would be better. Hope I get adjusted to it.
Thanks for all your help, em