As a nurse I understand mental illness, I understand that they are there and they happen and they often times are not something someone wants or can control. Key words there being "often times". There are more cases out there of Munchausen's than I care for.
Susie is exactly right. While Munchausen's is a mental illness these people are very well aware that they are not sick and there is nothing wrong with them. Often these people are highly intelligent, not to mention very crafty, sly, and extremely manipulative. Every move they make is planned out and meticulous. They have studied, read up on, planned out, thought out and whatever else so that they can continue with the behaviors without being caught. Munchausen's really is in laymen's terms, "extreme attention seeking behavior".
I have seen also a few cases of Munchausen's by proxy too. That means that the person is making someone else sick, for instance, a mother that poisons her baby, or suffocates it. In this case again it's attention seeking behavior on the worst level, but here the person wants to be the hero and wants to receive the praise for their heroic actions.
Oddly enough it's almost always women who have Munchausen's or Munchausen's by proxy, usually white, 25-35 years old, and often a medical professional of some kind or another.
While it sickens me to death, it is one of the things that I find medically the most interesting. I do love psych nursing a lot. I find the whole subject, every detail so fascinating, but the actual patients that have it drive me nuts and honestly, piss me off. I really do just want to give them a huge reality check.
Now when it comes to hypochondriacs, in my book there are two different kinds. You have the real ones who actually should and often do have a psych Dx of hypochondria and you have the ones that just think they do and or should. Someone with the real issue honestly believes they are sick, and usually have one thing after another after another, it's constant. These people also do their homework a lot of the time, in other words, if they think they have liver cancer they read up all about it then in their head they start developing the symptoms. In rare cases they can actually present with some of the real symptoms. Don't ask me how, I guess the mind is a powerful organ.
Then you have the people who really are not hypochondriacs by definition of Dx according to the DSM-5. But none the less these people are always whining about something or another. Their symptoms are always much worse than everyone elses, everything is exaggerated with them. These are the folks who come crying to you over a hang nail and tell everyone they got their finger caught in a door and it rolled all the skin back on their finger and now the bone is exposed. These are the type 2 hypo's. They unlike real type 1 hypos know they are not sick but they still want the attention like they are.
So long story short, all types of Munchausen's and the type 1 hypochondriac are mental illness', have a Dx accordingly and basically have their own chapters in the DSM-5. The second type of hypochondriac doesn't have a mental disorder, doesn't need a mental Dx, doesn't have a place or chapter in the DSM-5, but does need to be basically told to stop being a whiny-steiney you will be just fine.
Mashie