Reaction to sugar alcohols could be a sign of Fructose Malabsorption, which is a very common problem (it affects about 1 in 3 Europeans). One relatively new treatment is the "low-FODMAP" diet that eliminates certain grains, lactose, onions, beans, cruciferous vegetables, most fruits and many food additives like sugar alcohols.

I understand wanting to eat the same thing as your kids - cooking can get complicated very fast when everyone in the house has a different diet! Maybe it's time to wean yourself off of sweet tastes? Cream and coconut milk can taste very sweet by themselves when you're not accustomed to using sweeteners. Many dessert flavorings like vanilla, cinnamon, nutmeg and cardamom can taste sweet too.