I have some young girls in the garage that have been treated for cocci. They seem to be doing ok. But I have noticed the last 2 days they are shaking their heads a lot. They show no other signs - these are the ones that are negative for MG. They do show low titres for Newcastle and IB but the vet says that just means they have been exposed to it, not a current infection. Does Newcastle have head shaking as a symptom? I did not see this anywhere.