寒冷中救下的貓有些問題 (2 weeks in my house)

He always so eager to eat everyday. and 他在上個周末三天前突然吐及拉肚子，我覺的他吃多了wet food 我就隻給dry food. He still eats dry food throw up gets better 但是還是拉稀，他走動正常。但是昨晚上開始不喝也不吃了，今天早上給了wet food 也不吃感覺根本沒胃口，這個是怎麽回事兒啊？