Post Hospital-Visit, Selena Gomez Says She's "Feeling Much Better"

E!Online is reporting that Selena Gomez is "on the mend" and "ok" according to a source, and that she has rescheduled her cancelled Santa Monica Place mall appearance for Monday.

Selena left the hospital on Saturday, but was back on Sunday seeking additional medical attention. Sources told TMZ that Gomez had a number of tests for blood pressure issues, but so far doctors haven't been able to figure out exactly what is causing her illness. Gomez was rushed to the doctor after an appearance on The Tonight Show with Jay Leno complaining of nausea and severe headaches.

Boyfriend Justin Beiber was not by her side, as he tweeted that he was on his way to an appearance, but he did cancel an appearance at a Stanley Cup finals hockey game upon finding out his honey was sick.

Gomez took to Facebook to thank her fans for their support, posting: "I just wanted to say thank you so much for all of the get well wishes. I love you guys so much."

Selena's official site hasn't been updated with the rescheduled mall appearance but we really hope it is true that she is feeling well enough to perform on Monday. Get better honey!

Today, Selena took to her Twitter page to let her fans know she is doing A-OK. "Feeling much better, thank you all for being so understanding. Can't wait to see you all today at Santa Monica Place for the Monte Carlo kick off," she tweeted.