...The beginnings of OCD?

Basically, I've been sexually abused 4 times in my life.. 3 of them rape, only 2 of them reported and one of them my adoptive brother sexually abusing me, never actually having sex with me, so not actually raping me.. Right?

i now have an obsession over checking that my curtains are closed before it gets dark, that my window's shut, my expensive equipment (guitars etc) are away, cupboards, drawers and doors are shut. I get into bed feeling ok, then a sudden panic grips me and I have to check the door again and again before I can sleep.. It's my first night back at mine tonight, after a week away. So far I check my door about 5 times.. Which, to me is starting to get worse.. Could this be the beginnings of OCD?

I'm so stuck and confused.. Constantly looking over my shoulder, checking that no-ones walking behind me, constantly making sure I'm not attracting any attention.. The last rape was only about 3 weeks ago and so far I've heard nothing from the police.. Im terrified.. What if, as people living here say (one of them a witness-who lied- and one of them a friend of the witness), they're all out to get me and are going to come and jump me, or get someone to rape me deliberately? i don't know, I'm panicking and I don't know what to do!

Help?