Jessie J has been hospitalized just six weeks after undergoing surgery to treat breast cancer.

Earlier this year, the 37-year-old musician shared that she had been diagnosed with early-stage breast cancer. She had a mastectomy to remove the disease, followed by breast reconstruction surgery. On Sunday, Jessie J revealed that she was in the same ward, receiving treatment after falling ill unexpectedly.

“How I spent the last 24 hours,” Jessie J wrote on her Instagram Story Saturday along with photo in which she had an IV in her arm, according to E! News. “6 weeks post surgery and I was back in the same ward I was after my surgery. Not expected or planned. I had and still have symptoms that pointed towards a blood clot on the lung. IT IS NOT A BLOOD CLOT THANK GOD.”

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