Ok so my bearded dragon, Marty, has always been a friendly, calm male I trust around my kid (15 month yr old). (I have another one that does bite and I don't let around the kiddo and a really sweet rescue I just got last week). Anyways I just got home and was checking on each of the beardies making sure their timers switched over to night lights and they were all asleep. So when I went to look in marty's tank he jumped out from under his log and started running wild from one side of his terrain to the other wildly, which is extremely unusual, so I got him out and next thing I know he's opening his mouth and bit me. Now he has his beard puffed out sitting on me and when I pet him he opens his mouth like he is going to attack and if I look away he tries. He is also hissing and tail whacking like an iguana. I have no clue what is going on. When he calms down he still opens his mouth at me. When I had him out earlier and he was sweet as can be. He ate from my hand and everything. I'm really worried plz someone help. He is about a year old, 17 in front head to tail, 8 inches from head to hind legs, his poops are healthy, he eats Dubias and greens, he gets handled daily, his basking area stays at about 109, I use reptile carpet instead of substrate, and he gets repti-cal 2 times a week.