My cat is 13 year old Norwegian Cat. It is cold about 0 C in the morning and 7 to 15 C in daytime and we don't have air-conditioning heating however he likes the above ground sleeping spots and a kotatsu. He is eating a lot 25 grams per day plus 5 grams more at times with pumpkin added. He used to be one poop a day but now it is 3 or 4 times and doing it again in a few minutes. His poop and pee is very standard and neat. Is it an urgent problem?