Hi niko,
I noticed in your post, you talk about losing your homes, and how that seems to happen to you...now you're dealing with your brother, and his pressure on you, on top of everything else. I believe that the nightmares and PA's that you have about the housefire has something to do with what's going on with your brother. You're worried about that stability, and whether you will have somewhere to hang your hat..my theory, anyways.
I know that, for myself, when I have to deal with my family, it brings lots of nightmares around. I have them a lot anyway, but they usually get more pronounced. My T tells me it's a product of not having control of the situation. If you can, try and talk to your brother about ways that you can make things easier on the both of you.
I agree with the last post...talk to your T about how you're feeling and maybe they can come up with some additional solutions for you. ((((((NIKO))))))