Cressida
*has days called boom and bust, that is a day when feeling ok, does too much and is totally exhausted the following day.*
This is P.E.M (Post Exertional Malaise) which is the hallmark symbol of M.E. Best avoided since pushing yourself too hard can make you worse.
I actually have CFS and didn’t have it til the birth of my 4th child when in my forties. It’s not the only fatigue related contrition I have but I 100% agree that pushing yourself on good days is best avoided.
The trouble is on your good days your emotional self says go go go, even though your body might be disagreeing. I know that sounds completely mad, but that’s how it feels to me.
A very good friend’s daughter developed this condition at 15, for 10 years she really struggled and she did do the things suggested, when tired she logged things, she logged all her food. On “good” days she tried to get out in the fresh air and sit in the garden. Her bad days were very dark indeed. She is now in her thirties, with a child. Strangely having a baby appeared to help! (I’m not suggesting this.) haha
It’s quite fortunate these days in diagnosis as back in the day some GPs wouldn’t even recognise it as a condition!
I do wish you and your family the best of luck moving forward. I’d say the biggest thing to watch out for is depression, it’s so easy to quickly start to feel very low about not being able to easily do things you could do previously. 