For the love of all things holy..Use periods at the end of your sentences. Run on sentences make me head hurt.
Additionally, not all animals will look ill before they drop over dead. I used to raise guinea fowl chicks during the summers. Big batches at a time. Some mornings I'd look in and one of the healthy, spunky chicks from the previous night would be dead. Yesterday, I found a breeder mouse dead. The previous night she had been fine.