Mysterious 'suicide disease' is most painful illness – and majority of people have never heard of it

Many people have never heard of Complex Regional Pain Syndrome (CRPS), a condition that causes extreme discomfort that does not ease.

This condition is also called "suicide disease" because many people that have been diagnosed commit suicide.

According to NCBI, CRPS patients suffered severe pain, which is associated with a higher risk of suicide.

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A woman from Arizona has been told by her doctors she has the worst case of CRPS ever seen.

Kayla Hansen, 29, claimed her body is burning from the inside out. Because of CPRS, she is now no longer able to drive or even wash her hands.

In December 2015, Hansen crushed her hand in a car door, which triggered her condition.

In a recent interview with Barcroft TV, she opened up about her ordeal.

"CRPS is a condition where your nervous system attacks your entire body," Hansen said. "In some people it will contain itself on one arm or one foot or one leg. In my case, I have a full body form. It is rated the highest pain disease in the world. CRPS outranks any amputations. It outranks natural childbirth, any broken bones, more painful than cancer."

She added: "I feel from head to toe like someone has dumped gasoline on me and set me on fire and put me in the trash compactor."

Hansen has stage four CRPS. She described her condition as the "absolute" worst form of the poorly-understood condition patients can get.

"On a scale of one to 10, my CRPS pain most days is a 10 and that's with my medicine. I might get lucky some days and it goes down to a nine or a nine and a half. But it never goes below that."

Remembering her diagnosis, Hansen said: "I was kind of in shock at first, I didn't really put two and two together how serious it was."

"I mean he said it would affect my everyday living but I didn't realize at the time it would completely stop me in my tracks. It flipped my whole world upside down."

CRPS has no cure but it can go into remission. Hansen has tried several treatments to manage the levels of pain she suffers.

Unfortunately, none of those were successful in fighting her pain either. According to her, after about a year of having CRPS, she came to the point of accepting it.

"So, now I am hoping for a cure, but at the same time I realize that this is a disease that I am gonna have for the rest of my life," she said.

Watch the video below to learn more about Complex Regional Pain Syndrome (CRPS). Warning: Graphic content.