I looked down today and in a corner at the back of my knee there is a small spot of blue-green veins suddenly bulging out. I'm scared of DVT. I lead an extremely inactive lifestyle and I spend hours and hours sitting cross-legged on my bed. I had a DVT scare several months ago due to a red mark but an Ultrasound ruled it out. Since then I have been trying to exercise more. But now I have an actual vein bulging out! It nearly looks like all the pictures of DVT on Google Images!!!! I'm really scared....