Hi liquidspace I use to have a recurring dream so often that I would immediately recognise what was happening, what was going to happen and ensure that what I feared was going to happen never happened, because I was always so scared I would always run away. It would always start off with me in a group of about fifty men, against fifty monster types. One of these monsters was so huge and powerful that it could of killed all of us. But we would fight and kill each other off, then it would always end with me and one of the monsters as the only two left. I knew that if I ran away I would live and not be killed and I did this for a number of years until I told a friend about it, and he told me that if I have this dream again, don't run away. So the next time I had the dream I did not run away and 'hey presto', I have never had a similar dream since and that has got to be about eight years ago.
So the advice I would give to you is to control your fear and go into the upstairs room and you will find out that it is not as bad as you fear it will be.