Oliver Sacks said this quote
“ For 'wellness', naturally is no cause of complaint--people relish it, they enjoy it, they are at the furthest pole from complaint. People complain of feeling ill--not well. Unless, as George Eliot does, they have some intimation of 'wrongness' or danger, either through knowledge or association, or the very excess of excess. Thus, though a patient will scarcely complain of being 'very well', they may become suspicious if they feel 'too well'. ”