Is it normal to have nightmares about school?

i've had dreams about that too and just before school is about to start. Like sometimes I'll dream about seeing people that i know that dont even go to my school... or i walk in to the wrong cl room... or i can't seem to follow my schedule or weird things like that. Don't worry i know what u mean.... i was either anxious or dreading goin to school and thinking about it subconsciously...