Hi, my name is Abby, i'm 20 and i've recently been diagnosed with SVT. I've had it ever since i was about 13 but about 10 months ago it began to become unbearable and happened everyday/more than once a day. I was put on Metoprolol 50mg but it lowered my heart rate to only 35bpm and my blood pressure dangerously low so i have been taken off it and put onto Tambacor (Flecanide) 50mg because a long with the SVT there are several other things wrong including arrhythmia etc. I have been taking Tambacor for just over a week now and all my symptoms are becoming worse than they were before. I can't even sit and watch tv without my heart fluttering or beating rapidly (It can get to 220bpm by just sitting here) and i get severe tightness in my chest, short of breath and my left arm gets pins and needles and feels very heavy. It's stopping me from every day life and i am very worried.
Would anyone happen to know what i should do seeing as i have already been taken in an ambulance 3 times this year and don't really want to go again