Margaret's test results due

Doctors treating Princess Margaret are expecting test results which they hope will help to diagnose her mystery illness.

Margaret was still resting at Sandringham in Norfolk after being bedridden over the Christmas and New Year period.

Amid speculation over the nature of her ailment, one royal source said it was believed her condition would prove to be "physical rather than mental".

It had been claimed in a Sunday newspaper that Margaret, the Queen's younger sister, was suffering from severe clinical depression.

Buckingham Palace would not discuss the medical tests but said that the 70-year-old Princess had been seen by a doctor twice over the New Year weekend.

"She is continuing to rest at Sandringham, where she has nursing care available to her," a spokeswoman said.

Margaret was absent from the Royal Family's Christmas Eve and Christmas Day church services at Sandringham and the Palace said she was "feeling tired".

The nature of the medical tests is confidential, but doctors hope they will pinpoint the Princess's illness.

She has not been admitted to hospital and is expected to remain at Sandringham, the Queen's Norfolk estate, for the foreseeable future. The People newspaper claimed that she was missing from the royal festivities because she was depressed.

The paper said it was so bad that she refused to leave Sandringham on Christmas Day to join the rest of her family at church.

It was claimed that Margaret was spending up to two weeks at a time in bed in the "depths of despair" and was so depressed she had "lost the will to live".

Margaret had lost her appetite and experienced violent mood swings, the paper said. She was last seen in public in November at a London Ballet gala evening.

Margaret, who normally lives at Kensington Palace, suffered serious burns to her legs and feet in an accident while on holiday in the Caribbean during March 1999.

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