You know that feeling you get when you are on a theme park ride that suddenly drops? Your stomach leaps out of your body and you have to catch your breath. You get the same feeling when your car drives over a crest at speed. It feels like an ampule of adrenaline has been injected into your bloodstream as you take a moment to settle yourself.
Now imagine that you are brand new to this huge, open world; all you have known previously is a confined cavity. You have been unable to travel through air, as your surroundings came everywhere with you. You have felt cushioned bumps, jumps and ups and downs but it has all been experienced within the surety of the womb in which you have been enclosed.
And now you are out. Now your senses are bombarded with bright lights, loud noises and motion through space. It takes a while for your still-focusing eyes to adjust to all the stimuli you see and your vestibular system, the one that helps you find balance, is still trying to make sense of all the movement you are now experiencing. Life has suddenly gotten a whole lot faster and it can be stressful trying to keep up.