just wanted to send you some hugs, i only have one so no advice really on that front. But i know DD went thought a terror phase at about 20 months. tantrums, screaming, yelling, being so naughty i came so close to loosing it! I kept up with the methods i used, and tried to keep my cool and after about three weeks i had my lovely little girl back. I hope for you that its just a phase and they are just testing thier boundries. Hope you find some good advice and other twin mummies to chat to! ....wecome to BB by the way!!