My little Syrian Cookie has kind of given up on taming. He doesn't let me hold him or sometimes stroke him anymore and he just bites me when I try. He just stopped all of a sudden. He might like to be independent I guess and I would respect that but it just suddenly happened and I don't see why. Also whenever I put my hand in the cage out of his way he just comes over and bites me too for example today I went to adjust a toy in his cage then he bit my hand and it was quite sore and then he done it again and it's not a nibble, it's an anger bite. I'm bitten for random reasons?? Can someone please explain?? Cause his bites are really painful!