There are ways to make waffles and pancakes healthier. I understand your concern about the carbs (which turn into sugar) and then the maple syrup (which is also sugar).
Ok, here is the recipe I use to make my pancakes healthier:
I always use organic flour...but obviously that is not for everyone.
1/2 cup all purpose flour
1/2 cup whole grain flour
1/2 cup oat flour
Flax Seed*
1 TBL baking powder
pinch of salt
1 tsp honey (lower glycemic index then granulated sugar and if you use local honey you're getting the benefits of that as well!)
2 large eggs, beaten
2 TBL butter, melted
1 1/3 cup milk - this I actually will often times substitute half of this with organic whole milk plain yogurt. You have to use a little more milk ... but it tastes SO good and has a health benefit.
Start with just dividing the liquid between the yogurt and milk.... then thin out as you want. It just depends on how thick you want your pancakes.
*The Flax Seed I buy is by Hogson Mills, and is available in these individual packets (Meijer). I just throw in a packet into my pancakes, muffins, banana bread...whatever. It's a great source of those sought after Omega vitamins!
So... toss all the ingredients into a bowl.... mix well (a blender also works great) and then voila...healthier pancake batter.
You can try serving the pancakes with a mixture of boiled down fruit and just a smidge of syrup. Just boil down something like blueberries... add some syrup and you have a delicious and more nutritious breakfast. Over time you can reduce the amount of syrup and eventually your daughter will be eating her pancakes with just BERRIES! :-)
My family loves these pancakes and I know they are doing more for them then just filling them with carbs.
There are ways to make the things our kids like more healthy. Just think outside the box a little. The above recipe is one I modified from one of my cookbooks to suit my needs. It also shows our kids that you CAN be healthy and delicious. It gets THEM thinking outside the box as well.
I'm guessing the 'stomach ache' is just because she doesn't want whatever you are serving for breakfast and it's her way of exerting control. One other thing you can do to get her more interested is have her help you make the pancakes! If there isn't a lot of time in the morning, mix all the dry ingredients the night before (together) and then just throw in the wet ingredients the next day.
I hope this helps.
Good luck.