Hey y'all. I need some advice. I have a 5 year old SDW hen that is my daughters pet. We've had her since day 1. The past 2 days she's been acting weird. She's barley eating and drinking and kind of acts like she has allergies. She acts like she's having problems swallowing some and makes a noise like she's trying to sneeze and can't. She does have a little snot in her mouth and nose. I've given her 1/2cc of Tylan 50 each day. My daughter is 8 and this is her best friend. PLEASE HELP. I'm begging. My daughter will be lost without her chicky. She even sleeps with her every night. The hen hadn't been around any of our other chickens. She's just sitting around all day.