I am having a problem with my foot, very sore, tender to the touch, a little swollen mostly near my ankle. Skin is getting tight, a little red, This has been going on for about three weeks. It hurts more when I lay down. Is this a blood clot ???? History 6 years ago, heart failure, currently being treated. Age 61 male, I am being treated for pain in the same leg from my hip down to my knee, [ same leg as the ankle problem ] doctor put me on Gabapentin 300MG/ 3 times per day, plus Tramadol HCL 50MG 3 times per day