My 8 month old has recently started screaming at the top of her lungs when she wants/doesn't want something - lunch is taking too long, doesn't want to lie on the changing table, I pick her up because she's trying to drink from the dog bowl, etc. - and won't stop until she gets what she wants... isn't it a little early for this kind of behavior? Seems more like something a toddler would do to me.. also, how long until this 'phase' is over?? Helppppp!