On the other hand, for many years I believed I was well, while all the time I was actually ill. Because my illness was of a nature that was unrecognised by medical science until fairly recently, for many years, I just thought I was just basically inadequate. Or at least, I knew I didn't feel good, and I knew I wasn't peforming up to the level of other people, but it never occurred to me that it was because I was ill. I had been told so many times that there was nothing wrong with me. But that never helped me to fell well, nor did it help me to function better.

So, how does one explain that?