Suggest Treatment For Itching On The Ankle And A Swollen Foot

I am a 45 year old male, 6 1 , 220 pounds with no serious health issues or conditions except A-Fib. So I was taking a nap earlier today when I had an itch on my left ankle. When scratching it I noticed it felt a little big and upon inspection realized my entire left calf, ankle and foot were all swollen. Then I looked and the same had occured on my right leg, although not as bad. They are both puffy and I cannot see the bones or veins in either foot when usually I can. There is no pain, but they are definitely bigger than usual. My mom and sister came over for a little while and were surprised/concerned and my mom commented that my left foot looked plastic or like a rubber cast. I have been doing some reading and am concerned as well, especially if the possibility exsists that it could be a blood clot. Now before rushing to the emergency room or giving myself a panic attack, I wanted to see if I could get an opinion here online. My legs/feet have only been this way for about a day or so because I like to soak my feet and when I did that Friday night I didn t notice anything different then usual. I have been consuming more salt then I usjallh do, especially yesterday and thought maybe that could be the cause and maybe I am retaining water. I do not think this has ever happened to me before and I am hoping this isn t something serious or a symptom of something that is happening in my body which will cause problems. I thank you for your time and would appreciate any opinions or advice you may have. XXXX