what are you spose to do when a fast flow teat doesnt seem fast enough? Ky has the avent bottles and the fast flow teats. but he keeps sucking so hard that the teat collapses a bit and its taking him ages to drink or it gets blocked. hes just been guzzling now for about 5mins and only drank 2oz? normally he would of finished the bottle by now? whys he sucking so hard?! does anyone else get this problem?