Thoracic vascular disorder. It can cause thoracic aortic aneurysm. That is a bulging, weakened region inside the wall of the blood vessel. It causes an abnormal widening or ballooning from the chest (thoracic) Section of the aorta. Peripheral artery disorder: Leg ache or cramps with exercise but improve with relaxation; variations https://www.sgvascularctr.com/a-comprehensive-guide-to-aortic-aneurysm-in-singapore/