A strange man

i live on the second floor of a block of flats and at night i leave my window open and 1 night i dreamed i left it open 1 early morning wen its still dark i went to get a drink and tryed to open my bed room door and something was holdin it and i pushed to try get in but i coulndnt so i squeed my arm in a bit and i felt some one touched me so i pulled my arm out and then i woke up and i did get a drink after and i was really scared to go back in my room cause i thought that it might come true