I'm getting really worried by an increasing amount of negative self-talk from DS2 (5yo). He started last year every so often saying he didn't want to wear eg a coat or a hat because he'd "look stupid" or he wouldn't look "cool" or he'd be the only one wearing one. I just chalked this up to him wanting to fit in and not stand out so didn't fight it unless weather inappropriate.
By the end of January this had progressed to him saying angrily "I'm so stupid" or "I can't do anything" when he's cross or I've told him off for things like not stopping on his scooter when I yell stop. I said "you're not stupid, you just need to remember to listen, I know you can do it!" and he said again he was stupid.
Now we're getting, in addition to the above, I'm ugly, I have a fat face, and new this morning, I hate my eyes and want to change them (!??)
I have dismissed this for a while as him trying things out to get a reaction out of me, fishing for compliments/praise or trying to imagine himself as another person. But now I'm getting concerned that there is more to it, class teacher says she hasn't noticed anything at school and he certainly isn't hearing this stuff at home (I questioned DS1 to see if he had ever said anything, he says he hasn't and as I am at home with them I would have heard unless DS1 is being exceptionally beastly on the sly). He's now also saying he wants to quit his after school activities because he "never gets the prizes" (one kid each week gets a medal, he has already had two!) and "I'm rubbish" (activity leader says he is brilliant, hence the extra medal already won over other kids).
He's only 5!! I can't think where this comes from, we are a pretty casual/scruffy family and never comment on people's appearance or attire. He is the tallest and oldest in his class, a free reader, bright and popular and he is absolutely lavished with praise from all sides. Apart from starting reception, only other two big changes in the last 6 months were his older brother switching to a prep school, so they are in different schools for this year and next year until DS2 follows his brother. And the other is that our long-term nanny that he was very attached to has gone to a new family and I am home full time now but we are keeping contact with her and she is coming in to babysit regularly and he seems ok with this (on the surface?)
Does anyone have any experience with increasingly negative self-talk in a reception aged child? Everything I read is about teenagers and adults and DS1 never said anything like this at this age or since.
Help!!