I have a 4 month old cockerel that started having a limp approx 5 days ago. He's lost a lot of weight. He has gotten better regarding coordination, my first thought when I noticed was Marek's, I don't think that is the case from everything I have read. I have supplemented water with electrolytes thinking it was d/t an imbalance, treated with Corid thinking it could have been coccidiosis (not at the same time), I wormed him yesterday (& the rest of my flock). He did have 1 poop with roundworms in it after the wormer. There are no open wounds, no mites, no respiratory type distress, injured leg has no swelling or redness. Comb and waddles are still red. I have him in a dog crate. I feed mash and leave pellets as well. He does eat a little. I did give a PenG injection yesterday & today thinking he may have some sort of internal infection from this 'injured' leg. Anyone else have additional thoughts or ideas? I know a vet is always an option, just asking if there is anything else I can do differently. Thanks in advance.