So I adopted Iris about two weeks ago as a companion for Theo; she is almost four months old. I first noticed a popping sound when I would pick her up, or roll her onto her back to rub her tummy--it sounded like it was coming from her neck, and my husband noticed it too. At first, we were relieved to find that the leash ring on the little collar she was wearing could hit against itself and make a similar noise. I removed the collar, to make sure, but--sadly--the popping is in fact coming from Iris. I know that there are a few threads about puppies with popping knees, but this is definitely her neck...oh god.
I've included a picture of her, below.
Thanks in advance for any advice.