So I will fess up with a little story that might amuse you all ...
When you start medical school, they warn you about "med student-itis" - the process by which you diagnose yourself repeatedly with diseases you do not have because you are learning about them, and you attribute your self-reflections to symptoms. This is quite common (i.e. "this morning I woke up tired - I must have mono"). For several years I suffered from the delusion that I was immune to this self-involved, head-in-the-clouds condition, thinking "I am much too grounded to be so silly".
Enter pregnancy. In my defense, I think it would be hard for anyone to find out about a new life growing in the belly and then spend two weeks cramming the head with all the things that can go wrong with pregnancy, intra-partum, post-partum, and all those horrible disease that are first diagnosed in childhood. It really was a bummer of a time to study for board exams.
I did pretty well with all of the pre-term labor, fetal anomalies, complications of childbirth, post-partum hemorrhage, and meningococcemia. But one disease really got to me: pseudocyesis. This is a condition where people think they are pregnant, but are not. The freaky part is that, not only do they
think they are pregnant, but they have all the signs and symptoms - missed periods, morning sickness, breast tenderness, fatigue, abdominal swelling, weight gain, and - get ready for this - even a
positive pregnancy test!! This really happens!! Now of course I knew this condition was quite rare (i.e. my mom the shrink has seen it only twice - once in a male - and my OB has never even heard of it) but nevertheless, there were a few terrifying days when I was completely convinced that I had pseudocyesis. I thought: what could be worse than having to call all your friends and family and say "I was actually never pregnant, but I am getting admitted to the psychiatric ward for insanity!"
Of course, my rational brain knew the baby was real; Joey said there was no way I would have stopped eating veggies for a false-alarm child; my Mom said "I'm not going to try to talk you out of a silly obsession" and my Dad's brilliant advice, a shrug: "Oh". No one would sympathize. But I got a small dose of what it feels like to be consumed to the point of paralysis with an utterly ridiculous worry about a almost-non-existent disease. Maybe this'll give me a little more empathy for Joe's delusion that he's going bald, or for that strange guy in the ER about the bomb in his printer. After all, just because you are paranoid doesn't mean they're not after you. :)