Let me think.
Friend one got sick in his thirties and was bed bound for three months. I met him in his late fifties and did not know he has ME. He is super fit. If he gets stressed, it comes back and he has to stop everything for a day or two. Diet helped him recover, he did a full elimination diet to find his triggers. Exercise keeps him well.
Friend two got sick in her twenties, she was a really high achiever. She and her husband came down with a stomach bug and while he bounced back within days, it was the start of ME for her. Yoga was one of the turning points for her, once she could get out of bed, though once she recovered she never did it again. After six years she had recovered enough to feel life was good, even if it wasn't the life she had had previous to the illness. She's now in her fifties and the ME is back after she had two concussions a year apart. Pacing is really important for her now.
Friend three tried everything going to recover, but thinks it was just time that made the difference. She is another exceptionally hard working person who has had to slow down. I am not sure what she feels keeps her well, I must ask her.
Friend four recovered in five years. She was (again!) a super busy high achiever with two young children. She said just living moment to moment, day to day and focusing on the good things helped her through.
As I write this and think about my friends, I can see they are all very giving people.
Friend five recovered after thirty years (in as much as she leads a normal life). She's in her sixties. She tried many things but credits a good therapist as making the biggest difference to her recovery.
Friend six is in her early 80's and was ill for some years in her youth after burning out. She recovered slowly with rest and pacing.
My best friend, friend seven, has just turned fifty. She was hospitalized a number of times in her 20s due to ME. She got it after trying to go back to work too soon after the flu. She really struggled with pacing so fought and fought it. Macrobiotics helped her, but not until she has recovered enough to actually cook.
Pacing is the one common factor!