My 7 week old runner duck suddenly doesn't want to eat or drink except for lethargically eating peas - tender abdomen, keeps sticking a leg out then pulling it back in. It happened all of a sudden. I arrived home after being gone for a few hours and now a lethargic sick duckling...I gave it a bit of veggie oil in case a blockage and massaged the crop...crop seems fine. Did the intestine blow suddenly? Can I make Limon any more comfortable??? This is my first really sick duck, and I feel like crap about this.