Sneezing

My 6wk old chihuahua has had a runny nose with no apparent sneezing. Her eyes are watery at times but not oozing. She was laying on my chest earlier and her breathing was somewhat whistly (if thats a word) and noisy, but not crackling. She was taken from her mother WAY TOO SOON and sold to a pet store where I found her at just days over 4wks old!!! I guess you could say I rescued her because she was not being housed or fed properly at all. (obviously, she wasn't with her mommy) I was thinking I will call the vet or go by there tomorrow, but I was curious to see what you thought about this... Thanks!