If no bump your fine. I'm sure it's n inwards bump your meant to worry about my first was a proper dare devil and so fast when he was little he climbed on the arm chair and we had his pram next to it. I stood up and started walking to him he got excited and jumped head first off it hit his eye on the bitbthat sticks out tonchanhe the wheels to swivel. His eye was huge and he had such a bad black eye. I took him in got him checked and they said he was fine as long as he wasn't sick x
Oh bless you. I think they say is the distance is the same as baby's height should be OK. Call 111 if you're still concerned for advice