Don't worry, we all understand your situation. I remember that I cried many times in the beginning because I hated myself that cannot have enough milk to breast my twins. But you know, take rest and be happy is very important to have sufficient milk give out. And at last I can manage to breast my twins after 6 weeks times, so be patient and wait. According to the nurse, every mammi should have enough milk to feed baby, so you should let your twins suck your nipple frequently in order to stimulate for milk creation. Try to let your twins to drink more water if you are feeding them milk powder also. Be confident, you shall overcome all your difficulties soon and enjoy the joy of the new life your babies.