By Neil Shaw Millions of people are being urged to get NHS pharmacy checks for high blood pressure, which has been described as the “silent killer”. If left untreated, high blood pressure can lead to heart attacks, strokes, kidney disease and vascular dementia. Up to 4.2 million people in England are thought to be living with high blood pressure without knowing it – around a third of all those with the condition. Now, a new NHS Get Your Blood Pressure Checked campaign has been launched, backed by health charities, to warn people the condition often has no symptoms. England’s chief medical offi…