I am glad that you are OK....now "we" have something in common, I also have an implanted combo pacemaker & Defibrillator...and every 3 months I have a check with the Medtronics people to monitor the devise.

I had mine implanted December 3th of 2015, and yes, you have to be careful.
With time, I got back to almost my regular pace, I did change my PA systems to a much lighter ones (BOse Compacts and Maui LD5s, and only on big events, the Bose F1812s), but, those are far apart.

Take care and stick to veggies, protein, very light or almost nothing on carbs...

Manuel