This Morning I Bent Over To Pick Up Something And

This morning I bent over to pick up something and the room started spinning. I had to sit down for fear of pasting out. I waited a little while and felt better. Tonight I got in the bed and laid my head of the pillow and the same thing started again. It did not happen during the day but I got very dizzy when I laid down. I am a diabetic and have high pretension. I am on insulin and medication for high pretension. This is the first time this has happened.