I recently came across a fascinating talk on YouTube by Dr Gabor Mate, a physician with a background in palliative care who wrote the book When The Body Says No: Understanding the Stress-Disease Connection. His talk covers the link between compulsive care-giving/people-pleasing behavior, and physical illness.
I really relate to what he says. I used to have a successful Engineering career from which I burned out several years before I came down with CFS. I too was a compulsive care-giver and people-pleaser.
While working as an engineer I was heavily involved at my local church and did volunteer work on a 24 hour telephone crisis line. I enjoyed the feeling of helping people in crisis, but I can see now looking back that I was in a constant state of stress. I often did late night shifts at the crisis centre with a migraine, doped up on codeine-based pain-killers and desperate for the shift to end so I could go home to bed before yet another suicidal caller rang. Meanwhile my relationship with my girlfriend of the time was slowly falling apart, I was losing interest in the career I used to love, and my faith in the religion I was brought up with was going down the toilet.