Today's example of overthinking occurred when a tradesperson who is working on the house next door was sat in his van outside my house. Illogically, his presence stopped me from charging my phone (the socket is near the window) and from bringing the bins back in. This was because I didn't want him to think that I was spying on him (I wasn't!).
I would say that this made me a prisoner in my own home, but it was more of a case of being imprisoned by my own mind...again