Hi, Everyone-
I'm sorry for not posting sooner...the whole roommate thing blew up in my face and it's been a mess around here that past couple of days

Thank you all for responding to my post. In answer to your questions, Gigi is an 8 years old short-haired calico with no known health issues prior to this and is at her desired weight. She is strictly and indoor cat and is fed a canned food diet. There are three other kitties in the house; my other cat is Elsie, who is about 13 years old, non-diabetic but about 2 pounds overweight. My roommate has also has two kitties that are in good health.
I spent all day with Gigi yesterday and realized it's her nose, not her chest, that's making the noise. Although she doesn't have discharge coming out of her nose, it is very wet and she licks her lips a lot. She is eating, but she would rather just have her freeze dried chicken instead of Fancy Feast. But she is eating and her litter box habits are normal.
I can tell she doesn't feel well and I'm guessing she has a cold. She isn't struggling to breathe or breathing through her mouth, but she does sound "snotty", just without the "snot". Does this sound like a cat cold? If so, is there anything they can give her? How long do colds in cats usually last?
If she doesn't sound better by Saturday, I'll take her in to see her current vet since they are close by. I'd rather take her to a cat specialist, but the closest one is about 30 minutes from here and Gigi doesn't do well in the car. She gets very upset, howling the entire ride, and gets car sick. I don't want to stress her out, especially while she's feeling under the weather.
Thanks again for all the support

I look forward to hearing what you all think.
Hugs,
Lynn