A. If there is blood in the feces and he is not eating the problem is likely to be in the gastrointestinal system. Considering his age dietary related and infections diseases are common. I would suggest to change his diet to a very bland one based on chicken and rice (boiled) and potentially add a probiotic (ask your veterinarian). If he keeps being inappetent he may need an antibiotic treatment, and I would suggest to take him to your veterinarian for a check up.
Your account has been reactivated.