So I have a gentle Bantam. Lately all he does is sleep. His face has gone pale, his comb hangs over and has like white, purple black bumps on it. His droppings are white/light green and are in a liquid form. He'll sometimes make a gargling/rattling noise when he breathes. And I think a few days ago he was throwing up some yellow substances. I also noticed his belly is like dark red. I noticed it could be mites so put a mites lotion over him. Other than that he still walks a bit and eats. Any ideas of what this could be?