12/30/2015 AT 12:00 PM EST
has left her St. Barts vacation after her son Rob Kardashian
's hospitalization, a source tells PEOPLE.
Jenner, 60, jetted off
for a getaway on the Caribbean island with boyfriend Cory Gamble
after spending Christmas with her family in Calabasas, California.
Kris Jenner arriving on a yacht in St. Barts on Dec. 28
Pacific Coast News
News of Kardashian, 28, falling ill broke Tuesday, with some reports citing his diagnosis as diabetes
Rob Kardashian and Kris Jenner
Denise Truscello / WireImage
"Rob had stomach problems over the weekend and didn't feel well. He was at the hospital briefly," another source tells PEOPLE. "He has to take medicine now to control his blood sugar level. He was also told he needs to rethink his whole lifestyle. He needs to see a dietician and change the way he eats. If he doesn't change his lifestyle, he was told that it could have serious consequences."
The reclusive reality star has stayed out of the spotlight for the past two years after battling depression
and gaining over 100 lbs