Rooster vomiting

[jenniferlamar70]

I have a 10 week old olive egger that has been acting strange. I'm worried he may have got into something. My son got into our shop and forgot to close the door. It's a storage shed packed full so hard to get in and out of. Our rooster was coming out the door and I noticed him kind of wobbling. His head was twitching a bit. I secluded him and gave water and food in case he was sick from the heat. After about 30 mins I rechecked. He was walking but it was off and he seems out of it. I carried him in the house and he started vomiting something that looked like diluted milk or water with a white glaze. Any ideas on what this could be?
Update.
I can feel something hard in his crop

 

[Hens rule]

He may have an impacted crop. Check in the morning before he eats to see if its still hard. If it is he has an impacted crop, if not than something else. Do you have fertilizer, pestiside or rat poison in your shed or skmething he could get into. If you suspect poison give him water. Good luck.

 

[jenniferlamar70]

He may have an impacted crop. Check in the morning before he eats to see if its still hard. If it is he has an impacted crop, if not than something else. Do you have fertilizer, pestiside or rat poison in your shed or skmething he could get into. If you suspect poison give him water. Good luck.

Thanks. I'm started to suspect an impacted crop. It feels empty other then a hard spot.