Coffee Sensitivity?

rmqt

I recently adjusted my diet to include more protein at breakfast. I also drink 3-4 cups of coffee in an average AM. Up at 5, at work by 9, three kids mornings in between. It never bothered me, but my stomach's been killing me lately and I'm wondering if it has to do with few/no carbs in the morning now. I'm usually a bagel, english muffin, or cereal girl.