Just an update: Toby's doing well! No abnormality in eating or pooping habits. He is binkying daily and as active as ever. He is not getting any thinner, thankfully. The benebac is helping I think. I also got him a new bag of alfalfa so I am mixing that in with the timothy he was chowing down on before. I am aiming to fatten him up. He's so skinny and tiny but such a lively little guy!