My bearded dragon, Alex, has been with me for months now. Lately hes been acting strange, everytime I put my hand in the tank, he opens his mouth and gets ready to attack. Also when I get near him, he runs away, hes been like this for 2 weeks now. I don't understand! He was fine last month! I took him out to play, the temperature is good, and I feed him everyday. I really miss playing with him, but now he won't even let me touch him. Can anyone please help?