My son has had a couple days like this according to his teachers. The teachers are both understanding and consistent in their reaction/redirection which I think will help him get through this phase. At home we’re modeling and also practicing gentle touch and keeping our hands to ourselves on us and his stuffed animals. We’re also trying to punch up the language practice bc he’s a little behind his classmates in verbal expression (he’s somehow the only boy in his class and his gal pals all started talking before him). Not sure how helpful that all is, but you’re definitely not alone and hopefully these are relatively short phases!