"I know you aren't sweetie, but sometimes even people who aren't sick need to talk to the doctor." She patted her stomach for emphasis. "I'm not sick but I see him every week right now."
She squeezed her granddaughter in a brief, affectionate hug before letting her go. "But that's for later. Do you want to try and go back to sleep or do you want to stay up for a little while yet?" She wasn't going to press her on the issue, yet.