A.B.
I would call the doctor's office and ask to speak to a nurse. Tell them that you just want to make sure that you aren't overreacting about her symptoms (therefore don't want to just bring your child in). I've done this a few times with mine (especially when it feels like we've spent the entire year in and out of the doctor's office), and they are really good about running through the symptoms and letting me know if I need to be concerned or need to come in. And no, they don't always just say, "come on in".
Just for the record though, bluish fingers and lips are a symptom of pneumonia, and even if you don't hear anything in her breathing yet, if she's just had a severe illness, you may want to have her checked to rule it out.