Leg pain at night is a warning sign. Numbness means your nerves need help. Heavy legs can signal circulation or lymphatic issues. Sudden leg weakness may indicate nutrient deficiencies or nerve dysfunction. Burning legs could be a sign of nerve damage. Cold feet often point to poor circulation. Knee stiffness in the morning may be linked to early joint degeneration. Swelling around the ankles can be a sign of fluid retention or heart issues. Throbbing sensations might reflect blood flow problems