In early 2017, Qatar's total population was 2.6 million: 313,000 Qatari citizens and 2.3 million expatriates. Qatar is a high-income economy, backed by the world's third-largest natural-gas reserves and oil reserves. The country has the highest per capita income in the world.
1 Leg pain refers to any kind of pain that occurs between the heels and the pelvis. 2  Many causes of leg pain are obvious, such as injury after an accident.  Leg pain can have less obvious causes, such as peripheral artery disease.
See your doctor immediately. 1  If there is redness on your legs and if you have a fever. 2  If your legs are swollen and feel abnormally cool to touch. 3  Welling in both legs and breathing problems.  Calf pain after sitting for a long time such as after a long flight.