maybe you read about the mites and have 'secret' worries that your chickens will get something like mites or an illness.
i have dreamed that my chickens were walking all through the house, that they were out in the road, dying all over etc.
also, i have dreamed that eggs were ALL over.
probably no big whoop.
i dreamed that 'bad guys' were coming out of the piano of the church i went to as a child the other night and that they came after me. seriously weird.
sugar levels can have a lot to do with nightmares. if you continually have unusual dreams, night sweats etc, it can be swings in you blood sugar level.
( i am hypoglycemic. it is typical in diabetics also!)
foods that are hard to digest, i.e. cheese, are also good for giving nightmares and weird dreams too.
isn't it weird what our bodies can do?!?!?!