first off he hasn't eaten in more than three weeks, wehich i am aware is nothing in itself to be afraid of, but he usually eats every 2 weeks no problem....secondly i noticed a dry flaky spot on his head about 1.5 months ago that i had assumed came from him rubbing on the screen top to his cage and gettting to close to his heat lamp....now he has a dark brown spot on his upper lip which i have never noticed before although he acts healthy and i don't see anything else wrong with his mouth....i don't know if i should be worried or if there is anybody who has seen this before and has any ideas...