The Queen was forced to give up horse riding two months ago after suffering “discomfort”, it has been claimed.
The monarch, 95, was told to stop riding for now – but is said to be determined to get back in the saddle soon.
Her Majesty is known for her love of horseback riding and as an avid racing fan.
Last week, she spent a night in a private London hospital and was then advised to rest at home at Windsor Castle, but she has since resumed “light duties” and her weekly audience with the Prime Minister.
Earlier this week, she announced she would not be travelling to Scotland for the UN climate change conference Cop26.
It is said the Queen has not been on a horse since her summer break in Scotland.
A Balmoral source told the Sun: “She was in quite a bit of discomfort. She adores riding and it has been part of her ritual for most of her life.
“She has been extremely disappointed not to go riding since the beginning of September.”
The Mirror understands the Queen is not giving up riding permanently, while royal sources claim she plans to return to the saddle after resting.