Lily makes the same sound. She does it mostly when she wants to play and no one is around to play with her. Lol
Well I am glad that he pooped it out and he is hopefully feeling better! You will definitely know your bullie's noises better than anyone! They are very vocal so it is a good way to pick up on anything wrong. Always good to go with your instincts about your little guy!
^^ Me too! He hasnt made that noise at all since it happened.