Tummy ache

I made NED stay home alone today while I went to Ein Gedi. She has been complaining of a stomach ache for four days. Dr. Dad always said that stomach aches are the biggest complaint from children.
So I left her home and as I was sitting by the Dead Sea I made a doctor's appointment. Took her tonite.
Doctor checked everything. Said all internal organs are fine. It must be a virus.
If it's not better by Sunday (she's already missed two days of school) make her pee in a cup and take it to the lab.
Then he asks, "Does she complain a lot? Does she do it to get out of going to school?"

In front of NED what was I supposed to answer?

"I don't know. I'm not sure." Was the best I could do.

When I was her age, unless I was hemorrhaging, I went to school.

How to be sympathetic, yet know what's real?

I don't have the answer...