My husband and I are bottle feeding some kittens because the mom cat abandoned them. We've had them for about a week now and I've had no problems with them using the bathroom or eating. I just finished feeding them and one of the kittens is breathing weird. It's like a bubbling/wheezing sound and I'm freaking out, I can't stop crying. Please someone tell me what it could be. I have no way of getting to a vet until my husband gets home! Also I've been feeding them on their tummies.