So My pacemaker was implanted for more than a year before I started working out. I was happy and gain more confidence in myself when I started because never in my 20 years of life I would be doing exercises for myself, in the past years all I do is sit or lie down playing games and whatnot and I was happy to make a change for myself. Months later I started seeing progress especially the gains of muscle. Sadly after my next check up on my doctor advised me not do to push and pull exercise with my left arm since it can damage the leads and told it my leads loosens, i dont know if it happened after or before working out. My doctor tells me to do only cardio but my goal was just not to be healthy but also to look good, I was always one of the small kid being short and skinny, I dont think I could bulk with only cardio. Im really depressed anyone also have similar situation to mine?