The Voice‘s Jessie J is reportedly being monitored by doctors during her time on the show amid fears the added workload could have an adverse effect on her health.

According to the Daily Star Sunday the singer – who suffered a stroke when she is 18 – is undergoing regular health checks to ensure she does not have a relapse.

“Jessie has a history of medical issues and needs to be monitored,” a source told the paper.

“She works incredibly hard not only on The Voice but promoting her album around the world. Add to that the gruelling touring and personal appearances and it would be a lot for any person to take.”

The singer – who also suffered from heart problems as a teenager – has spoken in the past of her health troubles.

“I had a stroke when I was 18,” she said, “I was really tired and my body shut down.

“It made me realise that no matter how much you take care of yourself – I don’t drink, smoke or do drugs – you can always have your life taken away. The experience taught me that you can’t take anything for granted.”

Saturday’s edition of The Voice saw Jessie complete her team with duo Indie and Pixie and teenage singer Becky Hill.

She is currently touring in the US but will return in time for the show’s live finals which begin at the end of this month.