So two days ago my russian seemed perfectly fine like always, but I did notice since I put him in his outdoor enclosure for the summer that he was sleeping more often. yesterday he didn't really want to eat but he slowly did and today he shows interest in his food but won't eat it. His outdoor enclosure does have tort friendly plants for him to eat in it so maybe he just isn't hungry, but I've never seen him refuse a dandelion, does anyone know what could be wrong with him?