The Queen Consort Camilla has been forced to postpone a visit to the West Midlands on Tuesday after contracting a "seasonal illness", Buckingham Palace has said in a statement.The 75 year old was set to carry out several engagements including celebrating the centenary of Elmhurst Ballet School and visiting Southwater One Library in Telford. Camilla was also to have unveiled a stone for Telford Veterans’ Trail, as well as a plaque to commemorate the visit during the Valentine's Day trip on 14 February.