what is wrong with me?

I have some problem that I need to find out what is wrong with me. I started my job in 1994 and in or around that time I would worry that I was going to get fired for stupid things or things I never did and all of a sudden it stopped for several years. Now the last couple years Particularly around Christmas time I asked for a tranfer to another dept and was told No "think it was because of my weight." and that sent me into analyzing why I was told No and I kept thinking it was because they wanted me to leave or to fire me. I kind of got out of this stage then today it started every little thing I think I am going to get fired for. like the other day I was in a meeting and my boss asked me a question and I said I don't know and then he asked it again and I said "quit bothering me please" he just laughed and said "please" he does things to try to bother me and talks to me like I am a idiot. Which I know for a fact that I am way smarter than him. Where I work the only people ever fired are the people who either steal or are late/report off all the time.

I met a woman at work and she said she liked me. She may of played with my head. Well she quit and cut contact with me and one day I was listening to my police scanner and heard them say somebody with my last name had a warrant for their arrest. I thought for 3 months it was me and this woman who liked/played me was having me arrested. I have never been arrested ever not even a traffic ticket. Then my friend told me on Christmas day that he read in the paper the day before the person who had the warrant was arrested so I rested at that point from my 3 month worrying session. I would run my fan in my bedroom to drown out the cars pulling up outside because I always thought it was the police coming to get me. You know how they always say the police pound on your door well one day I hearding loud pounding on my door like only the police usually do "at least in movies" well I never answered it and always worried that it was the police. Which my neigboor is a retired Police officer and sometimes come over to ask me to fix his computer so it would of been him but I still thought it was the police. During those 3 months I would only go to work and no place else because I was afraid of getting arrested. gee while I write this I realize now how crazy I was thinking this.

So what is wrong with me and how can I fix it? Thanks