I'm sorry, I'm yet another that is joining in... MJ started to do this at a similar age and still hits her head with open palms when she is really frustrated or upset. It's horrid to watch
When she gets like that, I go straight over and cuddle her, as she is getting more and more worked up and if left continues to escalate if that makes sense.

It's odd as it's not a learnt behavior it must be something innate, but I don't understand why!

Sorry I'm not of any help


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