SelenaSick230.jpgSelena Gomez headed back to the hospital this morning, presumably for a follow-up visit after her hospitalization this weekend last week.

Selena's mom was in the driver's seat as she chauffeured the teen star around 11 am PT today.

Gomez Tweeted Monday morning that she was "feeling better" since her hospitalization last Thursday night for nausea, but apparently her medical drama isn't completely over.

The singer indicated in her Tweet that she would continue with her re-scheduled performance at Santa Monica Place this afternoon -- a gig originally set for last Friday, but that was canceled due to her illness. At the time, Selena's rep told X17 that the singer was "undergoing routine tests."

We hope our favorite teen star is okay!