GALVESTON, Texas -

A 19-year-old Texas A&M student from Friendswood has died just days after doctors diagnosed her with mononucleosis.

According to television station KBTX, Christy Crow died early Wednesday morning at UTMB Hospital in Galveston.

Crow's mother drove her daughter from College Station back to their home in Friendswood last week, and soon after, she was admitted to the hospital.

Crow's older brother says his sister didn't seemed phased by the illness.

"She was just like, 'Hey, I've got mono and I'm going to get over it,"' said Nick Crow. "It was weird. They (the doctors) could never get her health stabilized."

By Tuesday, Crow was getting worse. Her tonsils were swollen, making it hard for her to breathe. Her temperatures began to fluctuate, and her heart stopped several times.

Crow died early Wednesday morning. She was a sophomore at Texas A&M in College Station.

Mononucleosis is often called the "kissing disease." The virus that causes mono is transmitted through saliva.

You can contract it through kissing, but you can also be exposed through a cough or sneeze, or sharing a glass or food utensils with someone who has mono.  

Crow's family says they will continue to remember her as a fighting Aggie with a big heart.

An autopsy has been scheduled to determine an official cause of death.

Memorial services for Crow are planned for 6 p.m. Tuesday at Friendswood Community Church.