I am new to owning little piggies, and I recently got two because they do better in pairs. We got them about two weeks ago, and mine began coughing and sneezing. I took him to the vet and they said they were iffy about antibiotics but wanted him to get better. He has to take baytril for about a week, and at first it was good. But now he seems a little lethargic and he's only nibbling his veggies and hay. I'm really worried, can someone give me advice?