Hossein Rostami, an Iranian journalist, has reportedly wrote on Facebook that this "is not good news coming our way from our master."
He accordingly urged supports of the Supreme Leader to "pray deeply for him."
The report points out that Mr. Khamenei has not been seen in public since October 5
Last week he did not give his customary greeting to Iranian pilgrims as they set off for Mecca for the Shiite religious festival of Ghadeer.
Rostami has been asked by the Iranian authorities not to discuss or speculate about Mr. Khamenei's health online.
He has however posted a portrait of Mr. Khamenei accompanied by a poem by the legendary Persian poet Hafez on the subject of health. (The Washington Times, October 31)