Hello my friemd I am Dr. Arianisa Thanks for your question on HCM Venous congestion occurs when the valves in your leg veins don t work properly to keep blood moving efficiently from your legs to your heart. Instead, blood pools in your legs and feet, causing pain and swelling. The pain is typically described as a burning or cramping sensation, mainly in the calf. Varicose veins can cause venous congestion ,or poor function of valves on leg too.. So my anvice is to make an physical examination to your legs by your GP,and try to not stend for a long time on feet Hope this information is helpful to you Best regards