I, too, know how you feel. I did this extensively in my thirties and early forties. I can't say there was ever much understanding for my situation, only more need for my help of all kinds - as I became very ill myself.
I am now older and would say wiser. Many on these sorts of forums blithely claim that empaths are hear to help, to heal others. I came to the conclusion that I did not want to be extremely ill any more, and that to do so I would have to learn to look after myself - and this involved turning down the engine of my need to rush out and help; for my heart to rush out to others, and that sense I must help. This I found very hard to do.
I am now weller. Surprisingly well! And I now help judiciously. Many of those I felt so deeply for, and so responsible for are not so well (a lot of them, addicts), and have faded from my life completely. It is sad. But I came to the conclusion that it was better for me to be alive than dead.
I am still a magnet for certain types, but I have an early warning system I listen to - and though I still try to be kind I do not encourage them to attach. The ones I poured most energy into over many years really just chewed up all my energy and fervent desire to help. There are others I can help, and that is gently rewarding. Really, I had to entirely rewire myself over a number of years, to prevent that automatic burning leaping in to help people (who were generally not interested in helping themselves, and deeply disinterested in spending more than a second's thought on me!).
Your situation may be very different, but there may be something in there that I wrote that you relate to. I do hope you can find ways to rest and heal yourself. I spent so much of my life ill; I spent almost all my childhood very ill, and felt it was my role from a tiny age to help, heal, and save both my parents. I am trying to learn better ways to use my gifts, so that I can live a long and healthy life and do what I am meant to do - not chew myself up on bottomless pits.
I hope you find a way through your situation that brings health and healing, kindness and thoughtfulness to your own self, and that a full recovery from CFS is in your future.