My Wapped Dreamscape

This dream is a very sketchy one as lately I've been waking up with the dream dissapearing before I can get any of it down:

The first thing I can remember was being on the top deck of a bus with a friend beside me (don't know who it was, I just had the knowledge that this person beside me was a friend), I was looking through a medical book on diseases as in this dream I knew I was suffering from something and knew what it was (though I can no longer remember what it was supposed to be). I remember opening up one page which was about the treatment of someone with the back of his scull off and his brain growing out of the back of his head, at this point the page became fully animated with the patient looking up at me with sadness in his eyes as a meat slicer was used to pear down the excess brain.