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.

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"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."

Tennis superstar Serena Williams has admitted that she was on her ‘death bed’ at one point during the mystery illness that almost ended both her life and glittering career.

Williams, 29, is about to make her comeback at Eastbourne’s Aegon Tournament in Great Britain this week after she was sidelined with blood clots in her lung after she cut her foot.

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And the pin-up star opened-up about just how sick she really was as she tries to re-build both her life and career.