I had my pacemaker implanted July 2005. It has since then removed most of my symptoms. In the last fornight I have started to feel the irratic hearbeats rythmes again and yesterday they returned like pre pacemaker days. iIwas very unwell. I have had a pacemaker checkup last week and am now wearing a halter monitor. Today has been as bad. I do not understand what is going on as they say my pacemaker is working perfectly! Anyone had similar or has any idea what may be hppening here. I am fairly devestated at the thought of my symtoms returning.