"tired" looking chick

[SmiYa0126]

Hello! I bought two Rhode island reds chicks from a local farmer three days ago, they're four weeks. The one with the more yellow head has been acting like a normal chick, but the one with the more reddish head hasn't been extending her neck, it's mostly tucked in. I added nutri french into

 

[SmiYa0126]

Posted before I was done...I added nutri drench into their water two days ago, she definitely perked up, I also heard her sneeze a couple of times. Her eyes look tired to me. She's very vocal though. Loves cuddling at night, they actually both demand it. I have them on game bird starter. They're in my living room. I let them run around a few times a day, but they're only interested in perching and cleaning their new feathers.