I have a silkie chick that is approximately 2 weeks old. It has been fine and happy until this afternoon where I noticed its peep was deeper in pitch. I went to clean poop off its feet and heard crackling when it breathed. It also seems to sneeze slightly every so often and likes to sleep. What can I do for this baby? I just separated it from the others and brought it inside with some water+poly vi sol, food, a feather duster, a mirror, and a lamp with a 60w bulb shining on it. Right now it's upset it's alone and peeping loudly.