It will be hard for.him aswell mate
When I had heart failure after that heart attack it lasted about a year brutal one day first getting going I got stuck in a field with the dog 1 mileish from motor just nothing in me legs cramped like nothing I've felt. Like I weighed a ton it took me about 6_7 hour to get to car first only time I've felt proper helpless
Your legs are all.swelled put a fist in em the prints there
Heart disease normally causes it or heart attack
My ejection rate was 12 percent at one point last time near 60 it should be 55-70 percent