I know how you feel Sqad, mine was the same left me with irregular heart beat (should be 70 - 80 but doubled to 144+) took me back in for electric shock treatment (didn't work) the only thing that sorted me out was putting me on 'Warfarin'.
Here I am 3 months later feeling good (not marvelouse yet) but good.
Hang in there Sqad you'll get there. I find the biggest downfall is the loss of appetite.
jem