Hi , we took my guinea pig dumbo to the vet because he was very weak and thin and cold and his fur went all weird. The vet said it was scurvy and gave him an injection that he said contained vitamin c, and we went straight to the shop and bought all the veggies he recommended. But he seems to be a lot worse today , he now won't swallow and is constipated and won't move what should I do ??? Please help