one of my silkie chicks seems to sneezing. it sits all calm-like and then BAM its head flutters around and mouth is hanging wide open. I picked the chick up and it sat in my hand and was all calm and had a little shaking feeling (though the shaking may be because i haven't handles these chicks much). Is it possible for the chick to have a cold? its on medicated purnina start n'grow, and i also have some terramycin(?)*the medication that is a yellow powder that you mix in the water. so should i start giving the chicks the medicine again? i gave it to them in the water when i first brought them home just to be on the safe side as far as colds and jitters and so forth. Any ideas or opinions is much appreciated..