numb fingers

this does not happen alot but sometimes when im trying to wild- everything goes well and i find myself flying without a body waiting to enter a dream but than i feel my fingers go numb as if im stepping on them with my real body (it kinda hurts also)- i cant move at all or use (other than this thing- my dream control is very very very good) any dream powers... all that i have left to do is just wake myself up.. in reallity i see that my hands where really located at a bad position but in other time i see that the fingers are just tuching somthing (like each other or whatever) and thats it...
any thoughts?