Yesturday, I took my duck to the vet because he has bumble-foot. I feed him some romaine lettuce around 7 and we left at 8:30 in the morning. On the way there he vomited. He has never vomited before. When he got there he was just grooming himself. He fought a lot when they were doing the check up on him. Before they gave him 2 shots in his breast area he was falling asleep. We held him tight and they gave him the shots. Back in the car we looked ok, but then threw up again 2 minutes before getting him home. When we got him home we just gave him water for 30 minutes then fed him. We left him for 1 1/2 hours with his water so we could finish paying the vet and buy him some new food and get groceries. When we get back he looked very weak. At around 12:30 am today he was still very weak so we gave him a bit of a soak and then gave him new water with some durvet solution in it. He has been drinking little by little but has not eaten much since leave him for the 1 1/2 hours. He has pooped a little bit. The shots were antibiotics and a anti-inflammatory. He has perked up a little bit since the soak but still won't drink much and not eat. The day before the vet visit he ate 4 cups of crumble. He doesn't like any other food other than romaine lettuce and the usual feed I give him. I have tried over the years to feed him other this with failed results. Any advice would be great. He is a pekin duck and is 3 months short of being 5 years old. The vet gave me some oral antibiotics and a solution to soak his feet in ,but I do not want to use any of that until he eats something.