I have a couple of little pullets that became really sick, so I gave them baytril...and now 3 of them have a lame leg ( I injected in the leg as instructed by my vet). The foot is curled under and they are walking on the top of the foot! The injection was given 3 days ago, since that happened I switched to giving it orally. Is this normal? Or has this caused some sort of permanent damage? They are doing much better since getting the baytril, now it's just the crazy legs!