i just noticed that my blood feels very hard the last 3-4 inches of his body he is only about 3 or 4 months old and has never defecated for me only when i took him to the vet about a month ago for RI the vet made him defecate but i am just worried and it feels kinda crunchy if that makes since (possible urates maybe???) and the last 3/4 inch at the vent is very hard could it just be that hes gonna leave me a surprise pretty soon or is it possible impaction?? thanks,