I’m sure you’ve been and are a wonderful grandma to your grandkids. My Mom told me not too long ago she felt the same way once my siblings and I (also four kids) left home and started our adult lives. It’s sad to see it end, but it’s the beginning of something wonderful. I don’t think I’ve seen her so happy as to when she’s around her grandchildren (now has two, third on the way).
Thank you for sharing!