Any persistent or severe pain, especially in the head, abdomen, or chest, should be evaluated by your GP, who may refer you to a specialist. Unexplained blood loss, whether from vomit, urine, or stools (such as black or tarry stools), should be checked immediately. Sudden changes in bowel habits, like frequency or color, should also be reported to your GP, along with any changes in skin lesions, such as moles. Unexplained weight loss of more than 1lb (0.5kg) per week requires investigation, as does recurring cystitis in women or non-menstrual vaginal bleeding.
Breathlessness, especially with simple activities like walking upstairs, should be addressed by your GP, who may run tests to check for anaemia or other causes. All these symptoms warrant a thorough check-up to rule out underlying health issues, ensuring timely diagnosis and treatment.