Camilla health: Queen 'under strain' as her shaking hands spotted in Kenya

But Camilla, 76, appeared "under strain" at times, according to a personal trainer who spoke exclusively to GB News.

The Queen's hands were seen shaking during a visit to Situation Room in Kenya, where she met staff, volunteers and survivors of sexual and gender-based violence.

WATCH NOW: Queen Camilla seen with hands shaking in Kenya

Sarah Campus, a Women's Personal Trainer and Nutrition Coach spoke exclusively to GB News to explain whether the stress of the tour was a contributing factor.

She said: "The impact of Queen Camilla performing such strenuous global tours at her age can put a strain on her physical and mental health."

Queen Camilla is 76-years-old, but is still expected to carry out numerous engagements as King Charles's wife.

Campus added: "The duties that the Queen needs to carry out so far from home will certainly increase her levels of stress.

"This could result in physical, social and psychological problems.

"Furthermore, this could, in fact, contribute to her hands shaking."

According to the health expert, the travelling as well as the several engagements could have taken their toll on the Queen's health.

The flight between London and Nairobi lasts eight hours and 40 minutes on average.

LATEST ROYAL NEWS:

• Prince William dodges tricky question on Royal Family
  
• Sarah Ferguson makes heartbreaking confession on cancer fears
• Kate asked 'who are you' in awkward conversation with schoolchildren

Campus continued: "Not just the duties she carries out whilst in Kenya but the travelling itself could increase her cortisol levels, change in temperatures and altitude on her body may not be ideal for someone of her age."

The King and Queen travelled back home to London on Friday, November 3.

They will have a busy November and December schedule in the lead-up to King Charles's first royal Christmas since his Coronation.