i have a 3 week old orphan puppy. she is eating great. no crying.she sleeps alot. but when she breaths she has like a bubbly sound sometimes. when i hold her up she also opens her mouth. could she be sucking the fromula really fast? or would it sound like upper resp infection? i have them in a warm draft free room. her bother is going great he had his first growl today. he plays but she does not play at all. she just likes to sleep alot i have a 24 hour vet. but i dont want to waste a trip for nothing.