Photo: Frazer Harrison/Getty

Honoree Selena Gomez (L) and Francia Raisa attend Billboard Women In Music 2017 at The Ray Dolby Ballroom at Hollywood & Highland Center on November 30, 2017 in Hollywood, California.

Selena Gomezis grateful for her friendship with best friendFrancia Raisa.

“My best friend. Her name is Francia. She said, ‘No, I am absolutely getting tested,'” recalled Gomez as shespoke about her journey with the autoimmune disease. “And within three days, she went to get tested, and she was a match. And it was one of those moments where I felt watched over. I know I was so so so lucky.”

According to theMayo Clinic, the condition can cause inflammation affecting a person’s “joints, skin, kidneys, blood cells, brain, heart, and lungs.” Because there is currently no cure for the disease, up to 60 percent of people with lupus will develop kidney complications, theLupus Foundation of Americasays on their website.

TheOnly Murders in the Buildingstar continued: “I understand that that doesn’t happen for a lot of people, and I know the outcome of some of those situations and how serious they are, so I do not take it lightly that it’s happened to me that way.”

The decision, added Gomez, has made her “in debt” to Raisa.

“If you’ve been following me for a while, you know that I’ve kept my kidney donation process pretty private,“Raisa wrote on Twitteralongside a photo of herself in the hospital. “However, I think I’ve gotten to a point in my life where I feel comfortable and confident in speaking about my experience and using my platform to raise awareness for the various kidney diseases that affect our population.”

RELATED VIDEO:Selena GomezSays People Were ‘Attacking’ Her Over Her Lupus Weight Gain: ‘Really Messed Me Up’

Never miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human-interest stories.

She continued, “So, in honor of World Kidney Day, let’s talk about the impact of kidney disease and how we can work to ensure those living with kidney disease are living well.”

The actresses, who haveknown each other since 2007, were then rumored to be in a feud late last year after Gomez spoke toRolling Stonemagazine and said that she doesn’t havemany famous friendsand only listedTaylor Swiftas an example of a close friendship.

AfterE! News used the first half of the quoteto use in an Instagram post celebrating Swift and Gomez’s friendship, Raisa reportedly commented, “Interesting,” and then later deleted it.

source: people.com