Selena Gomez Returns to Hospital for Blood Pressure Tests

She isn't pregnant. Nor has she come down with Bieber Fever.

Instead, sources say Selena Gomez was rushed to the hospital on Thursday night - and then returned there again yesterday - due to concerns over high blood pressure.

Doctors have not yet discovered the basis for Selena's nausea and headache, which landed her under their care to begin with last week, following an appearance on The Tonight Show with Jay Leno.

She hopes to perform for fans on Monday at Santa Monica Place, which would kick off a 10-city tour for the artist. Let's hope she makes it and is feeling fine!

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