Lisachondria

Like hypochondria, but much, much worse. The true lisachondriac not only believes they have every exotic disease on the planet, but feels compelled to share this information with even the most casual of bystanders.

Lisachondriac: “I have a headache and I feel a bit warm. I’ve checked on Google and I blatantly have Dengue fever. I’m done for.”
Person: “Er, I don’t know who you are, though I have good reason to suspect you are one of those Lisachondriacs.”

Lisachondria affects one in four million people in civil society. Sufferers are typically spotted being escorted out of medical facilities by angry-looking staff.