I do to sometimes, its really freaky. I have the weriodist vivid dreams as well, last night I dreamt my friend was in charge of this strange cult and he could fly a plane, and he wanted me to join, but I said no and they but me on a steching rack - I woke up with my back killing (i have a bad back that proberly went into spasm at some point - hence my brain made sense of the pain by putting on a steching rack!)

I've also had a recuring dream for the last 20 years where I get mauled by a bear in a cave