I just got a new beardie about 6 days ago. He is normally pretty chill and relaxed. But just today after feeding he puffed slightly at me when I tried to handle him. I put him back down and came back later to try again. Before I was about to pick him up, I noticed the end of his tail was a greyer color than the rest of his body. I am kind of scared because I heard it could be necrosis. He has also been laying on the floor of his cage a lot and basking which is odd. He usually basks on his rock. Please help Im very very worried!