I have an 11 month old..wyandotte/silkie mix..started 3 days ago after heavy snow...at first he was just walking slow..now he is always trying to sleep..his squawks and chirps are super quiet..his wings are a little droopy..and he has no balance..if he gets bumped or strong wind he falls over..still eating/drinking/pooping normal...just has horrible balance and besides eating has 0 energy..large flock..some have occular mareks...8 died from mareks last month..he has been given VetRX and Rooster Booster..has no other symptoms..not injured..and no mites or other bug problems..hes sick..i just dont know with what...side note..i live in WA state..closest poultry vet is 2 hours away..and cost $130 for exam..so vet is out of question..i dont want to lose him..but dont know what to do