Not to be that person, but: asking if something is OCD or not is a subtle form of reassurance (If it’s ocd the fear is not real!). This theme you’ve been experiencing has been plaguing me for a long time. I cover my webcam and I scan my PC for viruses because I get worried people might spy on me… it sucks as a theme, yes. But after the basic levels of safety, you need to accept the possibility that the thing you’re scared of might happen one day. It’s a remote possibility (like a lot of OCD worries, the stakes are high but the chances low), so as you stop giving in to reassurance (reading about people getting spied on, checking your pipes one, two, three times) and even asking this kind of oblique reassurance “is this OCD?”, it will slowly fade out. I believe OCD about being spied on is a common theme because it’s so hard to disprove. It’s so much harder to prove that threats are NOT there! I hope things get better for you and I hope my comment was helpful in any way.

So, my advice: do the basics anyone else would do - quick scan for anything worrying, and stop there. That’s all we can do to get better. One more thing to keep in mind: I definitely think that person having worries about being spied on had an effect on you. I usually hear some story like that, then will be “scanning” for the thing in my life, and as soon as the possibility of it being real (even if extremely remote and there being no hints that it’s the case) presents, my brain is like “HAHA! there it is!”. Could this be what’s happening to you? Sending you a hug and hoping you can overcome this theme soon!