Can anyone help me with this chicken?

Chick 37 days old, Black australorp, 2 days ago she started developing this wobble in her step, I checked joints and legs and didnt find anything abnormal. I got her Poultry Nutri Drench and im hoping its a vitamin deficiency that will resolve itself, I currently have her isolated from the rest of the flock. Eyes clear, shes eating and drinking and pooping and getting around somewhat fine, just a bit wobbly. No other chicken is showing these signs.