My 8 year old Grandson is on 27 mg. of concerta ER. I have noticed changes in him. He no longer is loving and he rarely smile or laughes. Does'nt want the dog and cats close to him, where he use to love putting them. Doesn't wnt to be touched. Wont tell me he loves me. All before taking this medicine did these things. A worried Grandmother. Please help if you can.