Askmen.com has an entertaining, though frightening, article about the strange kinds of diseases that can be obtained if you try hard enough (and maybe one or two that you’d have difficulty contracting at all). Mind you, these diseases are very rare, very frightening, and very insane. Some of the diseases, such as reflex sympathetic dystrophy which causes severe pains in your limbs ALL THE TIME, sound like they’re a source of constant hell for the patient. According to the article, for some sufferes of reflex sympathetic disorder, part of the treatment involves being placed under a KEtamine coma just to reset the pain connectors in the body.
And then there’s Morgellon’s disease, which is still a hotly disputed topic, because some doctors say it exists, and some say it doesn’t. Some of the symptoms include:
…skin lesions accompanied by pain or intense itching, fibrous material in and extending out of the lesions, crawling sensations like insects under the skin who are moving, stinging or biting, and joint and muscle pain, among others.
In fact, this disease is so strange that it’s widely considered to be phychological in nature (more details at Wikipedia, which even disputes the neutrality of the article).
If that isn’t insane, I don’t know what is.