Dear members, I have two daughters (almost 6 and 7 months). After reading for hours, I believe my oldest has ODD. However, from all the posts on this site, everyone discusses an underlying condition. I have no idea what that could be. We have been to a psychiatrist and her thoughts were that my daughter was extremely bright and stubborn. I feel as if it is more than that and I am hoping someone has been through this and can offer some suggestions/hope. First, I should say, she has never had a problem with anyone except us. She has always done well in preschool and is excelling in kindergarten. In fact, her teacher said she would love to 20 more of her! She has a lot of friends and typically does not have any problems in social settings. With that being said, here is what we are living with. She argues constantly over nothing. If she doesn't want to do it, she starts an argument. When asked to go to her room for a timeout, she will usually start screaming, stomping feet, hitting the walls, etc. She is also easily frustrated. We have tried a combination of reward charts and timeouts for several months. This behavior started shortly after she turned four and has only gotten worse. She sleeps approximately 11 hours at night and on the weekend will typically nap for 2 hours. I don't feel as if there is a lack of sleep. We have nicknamed her (to ourselves of course) Jekyll/Hyde because that is what she is like. One minute is a crazy person and the next she is rubbing your shoulders. It is exhausting and insane to me. On thing to note, she has never resented her baby sister in any way. She adores her and the psychiatrist confirmed this. Can anyone offer some ideas of underlying conditions? She was an only grandchild for three years, but adores her cousin. She still gets lots of one-on-one with us and her grandparents. If anything, she is quite spoiled. My husband and I are just so tired. Any help you could provide would be greatly appreciated. Thanks!