Has any one heard of a child developing Obsessive Compulsive Disorder (OCD) while taking VyVance? My 7 year old has been taking Vyvance for about a year now. He only takes it on school days. While off of it during the summer he socialized well with other kids and played well, however once he started his medication he was back to only talking about movies and can't socialize with kids his own age. He is performing great in school, but without the medication he fails in school. Any suggestions of something better?