I have a 5 year old who has a total flip in attitude. We lived in GA and now in OK for the past 1 1/2 yrs. Husband is oilfield. All family in GA. Only a mother in law in OK. My son is now making a point to do the opposite of what mom and dad say. In school he is perfect and at his babysitters. He is the best when he is with his sister. Its been about 6-8 months with his attitude difference. He is not on meds or seeing anyone about the problem.