"Breast fed," she replied.
"Well, strip down to your waist," the doctor ordered. She did. He pinched her nipples, pressed, kneaded, and rubbed both breasts for a while in a very professional and detailed examination.
Motioning to her to get dressed, the doctor said, "No wonder this baby is underweight. You don't have any milk."
"I know," she said,
Spoiler: