Ugh.. (Read the intro..)

I think I have some kind of phobia. At night whenver I hear the house creek,I think someone's like in the house/trying to break in. My house has never been broken into before though. The house right next to us,has though. I might just be scared from that though.. I don't know,but this goes on like not every night but maybe like1-2 times a week. That I think people are breaking in,but thye never do..Is this just something weird or a phobia???