I have those a lot, depending on what it was about, whenever you have a situation that is in the place or with the person. It's almost your job to make the dream most like a reality. Even if it takes a little bit of effort and is out of your box, take the chance, it's better to make it come true a little than not true at all.
I really hope not. I had a terrible dream a few nights ago, where I went crazy and killed my mom, but I didn't realize what I did for a few years, then when I finally did find out, I was so upset that I killed myself... I don't think that's going to happen, so, no. Dreams don't always come true.