I'm really worried about her. She has been pretty lethargic and smaller then the others since I got her. I've been giving her special attention since the weekend and can now hear a rattle (kind of like a clicking noise) in her chest when she breathes (pretty laboriously - is that a word?) She does eat and she will drink but she falls asleep ALL the time... She's definitely not as active as the others. Any suggestions, what can I give her? I'm going out of town tomorrow and will leave her in the care of my neighbor thru the weekend. I'm sick about leaving her. Thanks!!!!