That does sound like something neurological. If it doesn't improve within a few days, you might consider culling. It is not likely to have a long or happy life.I’m really hoping it’s not neurological, but I’m starting to lean towards that.
We have 10 chicks (we had 12, but two passed before they reached a week old).
No one else is showing symptoms.
We are trying to move them in to a hutch out in the garage, but for the time being they are in the house. They were in a tote with heating pads, but they no longer need heat and they outgrew the tote, so they’re in a cardboard box until we can finish the hutch. They are on 30% protein game bird crumble. I clean the box and water container at least once a day.