Sleeping for most of us is our ultimate joy. It is the only time of the day where we can finally relax and recharge for another day's work the morning after. But what if you are experiencing some difficulty in sleeping for unexplainable reasons? This is what happened to Crsitina Speirs, a 22-year-old senior college student, who at first simply complained about her sleeping problem despite her very healthy lifestyle.

Speirs shared her story to Good Morning America recently and she admitted that she was indeed a "health freak." As a matter of fact, she would exercise up to six times a week and she even taught hot yoga classes whenever she had the time. More importantly, she would drink enough water to keep her body hydrated. However, although the positive effect of getting more than enough energy became evident even at night, she started to question the implication of her restlessness.

"I had a lot of energy," she said. "I wasn't sleeping... I was always on the go. I was never tired."

When she sought for medical assistance, doctors found out that although her potassium levels were significantly low, her blood pressure was markedly increased, but they were not certain what was causing the bizarre symptoms of Speirs' restlessness at night.

"That really freaked me out because them not knowing what's wrong with me - they're doctors, you know?" she added.

It was only later on when her mother suggested that she wanted Cristina to undergo a renal sonogram, when a shocking discovery stunned the medical professionals, who were attending to her needs.

At first, the sonogram technician advised Cristina Speirs to have an MRI thinking that the 22-year-old had a large combined kidney instead of having two normal-sized kidneys.

Apparently, the MRi revealed that Speirs had normal kidneys and it was a 10-centimeter tumor that alarmed the technician.

"I was in complete shock," she said, adding that she quickly called her parents telling them that she needed to undergo surgery right away.

Speirs consulted Dr. William Inabet, co-director of the Adrenal Center at Mount Sinai Hospital in New York City, and according to Inabet, he feared that it was a tumor that was producing  the excess cortisol and aldosterone in her system.

It was during the time when Superstorm Sandy hit the county and left everyone in chaos when Cristina had finally landed the operating room for her surgery.

According to Inabnet, he successfully removed the "sticky" tumor near Speirs' liver, which he identified as an adrenal cortical carcinoma. Inabnet said that this tumor affects only one in several thousand people.