G.M.
My doctor called it night terrors. My son had it for several months around the same age as your son.. The crying would not stop-- he would actually seem to be still asleep -- it was like a screaming cry that would not end. We would take turns walking around the house rocking him. I would sit on my bed & rock back & forth. I worked full-time and would be up hours each night. You have to just try soothing him -- while standing-try holding him --where his head is on your shoulder and rocking.. I didn't think it was night terrors--- I still to this day believe it was some type of pain in his ears.. I did have his ears checked several times---and the doctors never did find anything wrong-- but as a mother you sometimes just know.