Top heavy, drunk, or sick?

[reaganbates4]

I have googled help until my fingers cramped up!

From the get-go, my duckling CONSTANTLY sways head side to side, almost in a figure 8 movement.

I’ve read it that it could be niacin deficiency, some sort of toxic illness, or both!

She/he swims well, eats from my hand without issues, feeds from bottom of pool well, but cannot keep its head steady.

I’ve also noticed he/she isn’t growing as much as his/her buddies & recently started falling on back more frequently.

Please help! Any advice will be much appreciated!

I can Send pictures, answer questions or whatever if needed!

 

[Earthdale]

Are you giving it niacin?

 

[Miss Lydia]

You need to get Liquid BComplex TSC Carrie’s one it will say injectable but we use it orally putting it I over a tasty treat so we know they are getting full dose. Durvet is the brand.
https://www.backyardchickens.com/threads/niacin-deficiency-in-waterfowl.1367557/ dosing by age and info on niacin def.