@mauricepower
Your surgeon (cardiologist or EP) should have gone over physical restrictions they did not want you to participate in including movements of your arm.

My EP restricted me from most exercises for 3 months. After that it was specific. You are over 3 months but your doctors determine when you can return to exercising and which ones you can do.

I had my ICD/Pacemaker placed under my chest muscle as my skin was too thin to implant just under skin. So I have additional restriction after surgery as they went through my chest muscle.

Your doctors should have had a office visit to see how well you healed and gave you a release date. If not and me I would contact them. I would also asked them about specific exercises you are interested in doing and the pros and cons of them.

I mentioned all this as my EP said was okay to return to tennis but my Pace P.A. said she did not recommend playing tennis or fishing as extreme arm jerking could move wires or cause them to come out.

That is why you need to talk to your EP or surgeon. How were the wires placed in your heart. Were the the static type or screwed in type? You can see if screwed in they have a better chance of staying put than static. Thus only your surgeon and cardiologist knows this and should be directing you.

I started playing tennis 3 months after my surgery and my pacing lead came out. So my Pace P.A. was right. But I don't complain about my EP as he knew how important to me tennis was and was trying to give me the life style I wanted.

There are some restrictions I even abide by even today even though I have had a ICD/Pacemaker for over 20 years and on my 3rd device. I watch how far I reach up with my left arm, backwards, etc. I can feel some discomfort when I do so have learned not to. I refrain from any quick jerky of left arm. Your restrictions and what you find as discomfort may not be mine as I assume your device is under your skin not your muscle.

You can research exercises to do but your doctors are the best source as they have your full medical and mental health history. What exercises do I do? Water aerobics (I restrict my left arm to not over my head) 5 days a week, swim, bike, walk. My PCP wants me to do strength exercise lifting light weights but I find very boring.