I'm sorry I posted in the wrong forum earlier....At the first of March I bought 4 Silkie chics from TSC and one after the other started with shaking their head and turning their head upward one after the other. (i even posted on here about it), I got Selenium and Vit E and treated for 2 weeks and everyone was fine....I was so happy!!! Then woke up to one doing the SAME thing again. They are now in an outdoor coop but not in the run. Is this something to be worried that they will have again and again? I have started with the vit again. I just feel bad for them.