Baby hit head

So

My 16 month old has been walking since 12 months but still loses his balance at times and fall on his hands or butt. Sometimes he trips or like today slipped and hit the back of his head. Its hit carpet, the kitchen floor, and even the base of his high chair. It's been a few times now. He cries there's no bump and he acts normal butttttttt I worry if it keeps happening whether there will be long term damage. I almost wana just have him in a helmet 24/7!

😔