Great news dogman!! I too have experienced similar events. 2 years ago I got pneumococcal pneumonia that nearly took my life all my functions were failing, my heart was working at 25% capacity at one point I was in an induced coma for a week, they didn’t think I would make it...everyone was praying for me.. I left finally the hospital after two weeks and they said they didn’t know if my heart would ever get back to normal function but eventually my strength slowly
Came back I wouldn’t tire as easily just stayed positive and finally one day did the stress test and the ultra sound scans u did and they said I was normal again! That was a year and a half ago.. took me about 6 months to feel like I did previous to the event.
Have faith buddy . I hope you keep improving I’ve been praying for you as well as I know what it’s like to be in your position... much love to you from me <3