Headaches are extremely common, but you should keep an eye out for new headaches especially if they have any of the following features: worse in the morning or wake you up at night, worse when you cough, strain, bend over or shout, make you sick or vomit, are getting steadily worse and are not helped by painkillers.
It’s worth contacting your GP practice, especially if accompanied with other new symptoms like problems with your memory or vision, speech difficulties, loss of power or sensation in your arms/legs or loss of balance.