It's been going on for a couple of months now. DD8 keeps getting up in the night and saying she feels sad for no reason. Most nights. Sometimes in the day too but seems to be getting on generally ok no other changes in behaviour, happy at school, has fun with her friends. I have got her to take her vit d and magnesium supplements (think I originally got magnesium to help her sleep as it has never been her forte 😴) any thoughts on what it could be/how to help? Should we see GP?