Empty stomach

"Mummy, I have a stomachache (у меня болит живот)," said Nelly, a little girl of six.
"That's because you had no lunch. Your stomach is empty. You would feel better (ты будешь чувствовать себя лучше) if you had something in it."
That afternoon a friend came to see Nelly's mother. While they talked the friend said that he haid a bad headache (сильная головная боль) the whole day.
"That's because it is empty," said Nelly. " You would feel better if you had something in it."