Dear Patient , first thank you for contacting the website for more insight regarding your problem. depending on your age you may be at risk of atherosclerosis hardening of the arteries. which could affect even your lower limb arteries decreasing the blood supply to your feet once you exercise this might lead to the feeling of pins and pain in the calf and below , with time it will increase and even come at rest and in the middle of the night waking you up preferring to sleep in a chair where your legs hang down from the chair . please contact your cardiologist with your symptoms . meanwhile you could benefit from the following info Balance exercise with rest. Walk or do another activity to the point of pain and alternate it with rest periods. Over time, your circulation may improve as new, small (collateral) blood vessels form. Always talk to the doctor before starting an exercise program. Stop smoking. Smoking narrows the arteries, decreases the blood s ability to carry oxygen, and increases the risk of forming clots (thrombi and emboli). Take care of your feet, especially if you also have diabetes. Wear shoes that fit properly. Pay attention to any cuts, scrapes, or injuries, and see your doctor right away. Tissues heal slowly and are more likely to get infected when there is decreased circulation. Make sure your blood pressure is well controlled. Reduce your weight, if you are overweight. If your cholesterol is high, eat a low-cholesterol and low-fat diet. See: Heart-healthy diet. Monitor your blood sugar levels if you have diabetes, and keep them under control. If you are taking medicines for high blood pressure or diabetes, take them as your doctor has prescribed. best regards , Dr . Ahmad