Dany: You ask whether all mothers are hypothyroid after birth. Although it's not uncommon to have postpartum hypothyroidism and we should suspect it in mothers who have symptoms such as severe fatigue, feeling very cold, constipation, dry skin and poor milk supply, it is by no means every mother who gets this condition. I don't know the actual incidence of postpartum hypothyroidism (I'll check it), but I'd be surprised if it was more than 5-10%. Alicia. [log in to unmask]