Hello! I just picked up three little hens from somewhere local, but just noticed that my favorite one is having a hard time swallowing/sneezing. She's only three months old, and every time I pick her up she closes her eyes and gulps... possibly sleeping or hard time swallowing? Would cracked corn be too big/ too much for a three month old? Not sure how food maturing differs in Seramas vs. our other hens. Thank you!