Too Tough to Listen to Our Body?

Many doctors/people suggested or implied that most CFS/ME sufferers were mentally fragile so that they exaggerate their physical conditions. I have found just the opposite: they usually are mentally tough persons. I even tend to believe that their mental toughness is not at all the solution of their illness, as some doctors/people supposed, but one of (important) causes of their illness: their tough minds consciously or unconsciously ignored their physical needs, always push themselves to do things that their bodies cannot really afford to do, so their bodies cannot receive right kind of cares (such as enough rest, right nutritions, etc.) and eventually are no longer able to sustain normal functions.

This is at least 100% true to me and mostly likely true to a few chronic ill persons I know.