Chico is about 2 years old. I have had him about 2 months. He was untouchable, but liked to ride on my shoulder.until a week ago he spent hours a day on my shoulder inside and outside, and in the car. Even got to wanting his head rubbed. Literally overnight he changed. About a week ago he walked over to get on my shoulder and bit my neck hard. Since then he has attacked me every time try to mess with him. He Is throwing his food and water dish. I have to feed him on top of his cage while he is inside or he flys to my hand and bites. He is almost through molting, it hasn't been a problem. I really need help:confused, I miss my sweet little chico