How long have you had him? Have you seen him drink? Is his skin dull or his eyes blue? Are bits of his skin coming off, like a shed? Is he as active as normal? Is he thin- can you see his spine or is he triagular-shaped, or is he a good weight? Are your temperatures in his viv within the required range? Has he eaten for you? Did he have this appearance when you got him, or has he changed, suddenly or gradually?
Nanci