is reportedly concerned at the prospect of Scotland voting for independence.
The 88-year-old royal is believed to be so troubled by the prospect of Scotland voting for independence from the UK in ten days time that she has been asking for daily updates on the state of campaigns.
A source told The Sun newspaper: "Lots of people were telling us that it was going to be OK. But there is now a great deal of concern."
The worry over the break-up of the UK was fuelled by a YouGov poll at the weekend after the support for Scottish independence shot up to 51 per cent.
A source added to the Daily Mirror newspaper: "If there is a Yes vote that puts us into uncharted territory constitutionally. Nothing is certain and her being Queen of Scotland is not a given."
The YouGov poll also revealed that just 54 per cent of Scottish voters wanted the Queen as head of state, with 31 per cent preferring an elected figurehead.
However, yesterday (07.09.14), the palace attempted to play down any beliefs that the Queen had a bias in the vote by insisting she is "strictly neutral."
A spokeswoman said: "The referendum is a matter for the people of Scotland - the Queen remains strictly neutral on this, as she does on all political issues.
"The Queen has maintained a close interest in the referendum as she does with all major matters of public debate and is being kept informed by her ministers and officials in the usual way."
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