Sorry to hear that your having such a bad day. I've been there and it's not easy.
I hate to say so, but most of the beta's I tried just about tripled my PVC's.
I believe I'm one of those people that get increased pvc's and nsvt with a lower HR. When my IST is acting up, my pvc's lower by about half. A good day for me would be around 10,000.
Have you tried Sectal yet? It's a beta blocker that has intrinsic sympathomimetic activity, which means it actually speeds your heart up a bit. It still blocks the adrenaline, lowers blood pressure and helps the heart beat more effectively, but it won't lower your hr too much. Sectral also has years of research behind it showing that it actually reduces pvcs, helps reduce multiform pvc's, as well as helping prevent nsvt in most patients.
Most doctors don't prescribe it because it's an older drug and newer drugs get all the kick-backs. If you haven't tried it, why not suggest it to your doc and give it a try?
Don't give up, this too shall come to pass (as they say). One thing that helps me is to get mad about it. I walk around saying things like, come on, show me what you've got, or rolling my eyes at the big runs and thinking, yeah, that's right, it's still beating isn't it?!
I know it sounds crazy, but really, taking the fear out of the nasty buggers really brings about alittle peace and helps reduce them in the long run.
Sending hugs your way! Were all here for you.