Hi,I brought a new kitten home 3 days ago he is 5 weeks old and suddenly has black poo. He is fine in himself playful eating no apparent distress however after looking up that it could more than likely be a bleed I rang the vet she said well it could be a number of things don't worry and heresee an appointment for in a few days. But I am stressed as hell after reading how serious this could be does anyone have any experience with this what did it turn out to be and what can I do to tell if it's life treating? Thank you so much in advance to anyone who help just I have 2 other cats and never had anything like this