My Dad had been complaining of exhaustion so I was able to get him to see my primary physician. My folks used to see a Dr whose office visits involved a wait of 3 or more hours in the waiting room ~ making them reluctant to go
She had him start a water pill for swollen feet and had him see a cardiologist
After a battery of tests, the Dr said he could use a pacemaker. His heart stopped over 200 times during a 24 hour monitor.
I was a bit nervous, my Dad is 90 He stayed overnight and was back home.
So far he is doing great. He’s hoping for more energy for his paintings