Matildaâ€™s buckling, Poseidon, who was born with the bad back legs is sick, and I donâ€™t know whatâ€™s wrong. He doesnâ€™t leave the barn unless I take him out and he doesnâ€™t play at all. Yesterday when I got home I went out and found his nose covered with snot so he couldnâ€™t breathe well at all. I cleared it out and he fell asleep. Heâ€™s very weak and I gave him some Nutri-Drench before school. Any ideas on what could be wrong? What are the symptoms of Navel ill or floppy kid syndrome?