<s>[INST] I have had problems for the past couple years with swelling in one leg and foot. The swelling will last for days or a couple weeks then go away and not return for weeks or months. The swelling will leave the top of my foot feeling bruised. Now, I have developed pain in my leg just below the knee that comes and goes and can get so severe it s painful to walk. When I have the pain it feels as if there is a tight band tied around my leg just below the knee and when this happens there is always swelling in the leg below the knee. I ve tried all the usual remedies for swollen legs including compression stockings and elevation to no avail. Even lasix has little effect. Could this be a clot? [/INST] Hi, thank you for providing the brief history of you. As per your history I feel you should undergo a thorough clinical examination and some diagnostic tests. As just be mere assumption of having clot and getting worried is not going to work. If there is a clot there should be skin discoloration and also some other symptoms. Taking a clinical examination and a Doppler scan can help reveal the causative factor and then the treatment can be initiated. The swelling can be because of numerous factors like the kidney pathology, the heart malfunctioning, DVT, etc. With the proper clinical examination and diagnostic tests we can rule out the causative factor & the diagnosis induced treatment can be initiated. Do not go by self assumption or by mere internet or Google. Without a thorough examination of a specialist you can just make yourself weaker by mind. It can be a simple issue to solve rather making it bigger. Regards Jay In Chat Doctor.  </s>