A British-Iranian woman jailed in Iran has been taken to a prison clinic after she "blacked out", her husband has said.
Nazanin Zaghari-Ratcliffe was jailed for five years in 2016 after being convicted of spying, which she denies.
She had just returned to prison after being granted a three-day release over the weekend.
Richard Ratcliffe said his wife had suffered several panic attacks on Tuesday and Wednesday.
He said she had spoken of a headache and numbness in her legs and right arm, as well as a rash.
"I think it it feels like the physical symptoms of crushing disappointment since she went back into prison," he said.
Mr Ratcliffe said the head of the prison was "worried enough to come down and see her" and was "very surprised" that she was back in prison.
He added she was still in the clinic as far as he knew, despite reports that she had been taken to an external hospital.
Ms Zaghari-Ratcliffe was reunited with her family, including her four-year-old daughter Gabriella, during the temporary release.
She voluntarily returned to prison on Sunday night after her application for an extension was denied.