Today I took my bearded dragon out to run around my room, after about 15 minutes, I went and picked her up. As soon as I did that she puffed all the way up and heard beard was all the way black. I've had her for about 5 months now, and she has never once shown any sign of aggression, or had a black beard. It was like she was frozen in place all puffed up and angry. I wasnt going to try and pick her up like that so I just left her alone for a while, but everytime I walked in the room she would do it again. I was finally able to start petting her and she calmed down, and I was able to get her back in the tank. Is this normal for a female bearded dragon? if so, what causes this? any advice?