DS (5) and DD (9) have both been complaining of tummy aches for the last few days - started in both of then Sunday evening - no vomiting, no runny brown stuff, just cramps and pain. Doctor this morning said it was probably just a virus.
Neither are very hungry and DS in particular is tired and has slept for much of the afternoon. How long is it reasonable to expect it'll go on for and I should I be worried?