Selena Gomez is on the road to recovery after days of speculation surrounding a mystery illness which landed her in hospital.

RadarOnline.com can report that the 18-year-old - who rushed to seek medical care in Burbank, Ca aftering complaining of nausea and a severe headache - is already returning to work.

PHOTOS:  Selena Gomez In Concert

"Feeling much better," she wrote on her Twitter page Monday. "Thank you all for being so understanding. Can't wait to see you all today at Santa Monica Place for the Monte Carlo kickoff."