I have a 4 month old lamb that walks like he's drunk. This started over a month ago and has gotten progressively worse. He has a great appetite and travels everywhere with the rest of the lambs. He doesn't have any problems getting up after laying down but if he gets knocked over, which happens frequently because he's always underfoot, he struggles to get up and thrashes. If I roll him onto his belly, he'll get right up.
I raised him on a bottle because he couldn't stand for the first three day. After three days he was able to get up and walk without any issues. This wobbly stuff just came about recently.
Any thoughts as to what might be wrong?