5 year old says he is unhappy

[Thingsthatgo]

My Ds is very articulate but doesn’t always talk about how he is feeling. Recently he has been poorly with endless colds and been a bit listless. We were talking about what he would like to do after school and he started to say how he doesn’t really like doing anything and that nothing makes him happy. It was really hard to hear and I tried to talk to him about it to discover the cause, but he started to cry. However, he perked up quite soon afterwards and was in a good mood for the rest of the evening. The same happened today.
I don’t know if he is just tired and hungry and it’s making him emotional or if I need to try and delve deeper. Anyone have any experience of this?

I was once given some fantastic but simple advice.... just in the same way as it helps adults, exercise can really lift children's mood too. I upped the amount of exercise after school. Running around the garden etc. It made such a difference.
Also, does he take a multi vitamin daily?

Bless him! Has he just gone into Reception or year 1. Either can be exhausting for children and cause them to be a bit run down whilst they adjust.

Thank you for replying. He does take a multi vitamin, but he’s not a very outdoorsy child. I think a bit of fresh air and a run around might help, I’ll give it a go.
He has gone into year one, and it has been a massive change. They are expected to do a lot more sitting and working/listening. He is very academically minded, and finds all the work very easy (but not the art and PE!).