Knot in my stomach, lump in my throat

Today's 100 words:

I woke up this morning with a knot in my stomach as I thought once again about how quickly my kids, especially my son, are growing up. It's kindergarten registration time here, and the fact that he'll be in school all day after this summer makes me want to cry. I wish I could stop the days from passing so quickly. I don't want to miss a moment, and while sometimes I can push my sadness aside, as my son gets closer to finishing preschool and grows bigger and stronger each day, I can't help the lump in my throat...