The Queen spent the night in hospital 'for some preliminary investigations'.This comes after she was forced to cancel her two-day trip to Northern Ireland following doctors' orders.
The 95 year old monarch, who was 'disappointed' after she was unable to attend engagements in Northern Ireland, was discharged on Thursday 21 October after she was admitted to hospital on Wednesday afternoon.
According to sources, she returned to some light duties at her home in Windsor Castle on the very same day. "Quite understandably, a cautious approach is being taken by the medical team," they explained to the Daily Mail.
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