Mommies, please answer ??? Who has babies fallen from a low bed in in…

Mommies, please answer ??? Who has babies fallen from a low bed in infancy? In 5 days the baby will be 4 months old. I left him with my brother, he wanted to lift him up, but he slipped and fell on the floor from a small height ??? He's calm, cried for only a couple of seconds, there's nothing in the head area, even redness, no blow so strong and not was. But my heart is trembling with fear ? . Mom calms down, says there's nothing, the baby didn't even cry, but I'm scared ?