Last night when I stood up and had walked a couple of steps, my left calf became beyond painful, almost like a cramp feeling. I don't know if I accidentally twisted it as I was walking or what, but the pain was there through the night and to walk on it today is unbearably painful.. is it something I need to worry about? My family have a history of blood clots, and a few weeks before I fell pregnant I'd had a suspected one but in my right calf! Everything in pregnancy makes me worry, so people's views on this would be great :)