Dear sir Swelling of legs, especially tibial shin and dorsum of the foot is very common after sitting or travelling for a long time. It is due to decrease in the venous return to the heart causing stasis of venous circulation. It will happen due to two reasons 1. Decreased cardiac output - Due to heart condition. 2. Increased fluid overload - Increased intake of water or renal disorders. It rarely cause DVT and other complications. So dont worry. what best you can do is to get blood pressure checked, 2D Echo scanning done to look for ejection fraction. Thirdly Taking a mild diuretic will decrease the edema ideally like thiazides or loop diuretics if there is no contraindication. Thanks