Oh, man, Kenny! That is awful! So much to deal with! Poor little guy. DS has a friend on Singulair for a few months who is now so hyper he seems like he is on speed. Not your ordinary hyper...I mean jittery to the point that he seems like he can't control his body. His mom just took him off hoping it would help. And he started with the nightmares too about a month ago.
Hope your guy grows out of it all!