sick hen-egg bound, mareks,other??

[eponagirl]

My young BLRW (approx 8-9 months old) is not acting right. I noticed last night that she was not so perky and seemed a little dazed. She ate ok and made it to roost. This morning when I let everyone out, I noticed she was wobbly and had a hard time walking. At one point, she seemed "stuck" with one leg forward and one back as if in mid walk. Then she finally moved. Now she is sitting quietly back inside (so she was able to make it down one step to get out and then back in). Earlier she pooped normally and attempted for some food.

She let me pet her while she sat in the sun and I tried to feel around her body for anything noticeable. Crop seems ok....perhaps she is egg bound, will they poop a normal size poop if they are egg bound?

It's just so hard to tell anything or know what to do, so for now I am keeping an eye on her.

Any thoughts, suggestions will be welcome!

added: they have oyster shell, grit and a complete layer feed, so nutritional def are unlikely.

 

[eponagirl]

UPDATE: This hen is trying to act normal with the exception of not being able to get around well. Actually, last night she was able to jump up to the roost, tonite she needed help...I may actually separate her tonite because I am worried the others will smoosh her and she can't get away. (they sleep on a 2x4 above a shelf and sometimes huddle 1/2 on the shelf and 1/2 on the 2x4).

Is this looking like Marek's, her legs are getting worse by the hour? I also found out that as a chick she was not vaccinated (i got her at 10 weeks old).