I think a lot will depend on your cardiac health
before the PM was put in. I had a CRTD put in about a year ago. First , all doctors lie about the time to heal after the implant, take it easy and use the pain meds to get through that part. I remember about a month of discomfort.
Next, I hope you do better than I did, my case was pretty far gone prior to PM implant , with my ejection fraction under 20% and an expected 90 % fatality within 5 years.
I can not do many things, and continue to try and enjoy the things I can do. All efforts now are geared to setting sail in Feb and cruising the east US coast until fall.
Good luck to you, perhaps I'll see you!