A royal commentator has claimed that the Queen is “stressed” about the amount of work King Charles is doing. King Charles has been partaking in a number of royal engagements over recent weeks despite undergoing cancer treatment and according to royal commentator Rafe Heydel-Mankoo, Queen Camilla thinks he may be doing a bit too much. The King has returned to his usual work after the Palace announced he would return to public-facing duties on April 30. Last week he hosted a garden party for 7,000 people at Buckingham Palace, and on Monday he visited an army base for an emotional joint engagemen…