Just as grown ups react differently to pain so do babies. I think your idea of *shut down* is on the mark. I would strongly advise not stressing the infant. As for the tylenol, it might make the baby more sleepy and I would really hesitate recommending it for a newborn without the physician's input. (tylenol made my kids sleep like crazy!) Alson with the fx clavicals, the babies change dramatically once it is stabilized. Sometimes when mothers don't follow our orders we get upset and worry about their non-compliance. If the baby's clavicle fx'd, the delivery was traumatic. Maybe someone needs to look into mom's level of pain. Could it be she doesn't feel well enough to nurse or is in pain? If so, relaxation techs and alt. positions for feeding, perineal soaks, pain meds, etc. may help her. I had moms so worried about taking anything while nsg that they are immobile with pain.