1 Week old chick Can’t walk all of a Sudden

[Gawilliams]

This evening my husband found one of our chicks, not quite one week old chick unable to stand or walk. It walked and ran around normally. When I hold it, it will kick its legs, but when you put it down it tries to walk but just falls on it back or tips over. It’s like it can’t hold its weight.

 

[Wyorp Rock]

You have suggestions on your other thread.
If you can add photos or video of your chick, that would be a good idea.

https://www.backyardchickens.com/threads/baby-chick-can’t-walk-all-of-a-sudden.1541567/