Absolutely normal. I work in a nursery and have seen many parents who have found the separation difficult at first. I’m guessing he’s been at home with you until now so it’s a big adjustment. What are you doing while he’s there? It’s easier to dwell on missing him if you’re not busy.
My little one started pre school Tuesday and first day he was little upset but today loved it which I'm pleased about but I can't help feel sad and down but I am not really sure why, is this normal? Anyone else experience this