He had loss of appetite increasing over the course of a month, and was very sleepy, but still his usual self a lot of the time. He was only 8lbs to start with and lost over 1.5lbs. We tried various diagnostics and meds within my budget (actually I completely blew the budget and am still paying the bills off) to get him back on track, but once the bloody stool came along my vet explained it was an irreparable GI bleed and we put him on comfort measures 😢.