Leg burning sensation can result from a number of causes, including damage to nerves in the legs from exposure to extreme heat or cold or to toxic substances. Leg burning sensation might also result from a circulation problem that impairs blood flow to the legs, a leg injury, or intense exercise.
Swollen feet can have several different causes. They are all do to increase in the amount of fluid in your feet and ankles. Since you swelling seems to happen later in the evening, and you have no other symptoms, I would guess that your swelling is due to venous insufficiency. This is when the veins in your legs have trouble getting blood from your feet back up to your heart. It is the most common blood vessel disease.
Other medical conditions or changes in your body can also cause your legs, feet, and ankles to swell. These include: 1  natural changes during a womanâs menstrual cycle. 2  pregnancy. 3  preeclampsia (a condition during pregnancy that causes high blood pressure). 4  a blood clot of the leg.