THIS kind of thing I have all the time. But I also have OCD, and between that and how I grew up, it really isn't that much of a surprise. Drives BF nuts, but I think he is not paranoid enough(!) (Seriously, a case could be made for this.) At any rate, if I bring some of these up with him, I can sort of see a bit of reason if I can convince myself that the middle ground is probably where reality is. So... talking to people to try to break the running loop in your head might prove helpful.

But, for me, when it gets to a higher level (cameras and things very similar to those you mention), I don't tend to talk about it, because I know how it sounds and I don't want people to think I'm crazy. Even knowing how it sounds doesn't diminish my belief of a thing though. Fortunately, this doesn't happen often. With the history of where you live Venus, and things your mother talks about, it's quite understandable that when you feel paranoid it would run in this direction. Soooo, perhaps it belongs more in the first catagory, yes? Reminding yourself that it is history combined with talking to someone? Oh, and repeating to yourself in lieu of the paranoia loop about the --like you said about trafficking arms, so... seriously, books???!!! Seriously???!!! In other words, trying to put it into perspective. Yeah, I know, but such a big part of the battle is breaking the loop. Sunreach has a VERY good idea about distraction before bedtime. (I don't know about you, but for me this is the worst time as the loop goes into hyperdrive.)

Hope this posts early enough for your timezone. Good luck!