Bik,
So sorry you are feeling awful! :( I don't know if I've posted these for you before...if not, here they are..
...if so, at least they are here for easy access. Go through them again...practice at these techniques is key!
Self Help for PVCs
http://heartpvcs.com/pvc_cures.htm
http://heartpvcs.com/long_term_pvc_cures.htm