I don't feel in control in my dreams anymore.

I've gotten pretty good at opening a blank space in my head and think of subtle environments. Three nights strait however I've been visited in a dream by an extremely proper man who insists I sit and have tea with him. Ive never taken him up on the offer and each morning Ive woken up with a huge headache. Last night as I brushed past him and carried on he spoke up in a real pissy tone and told me "Don't think for a second that this is YOUR dream."

Does anyone have similar experiences?