This wonderful and exciting new symptom has come on in the last week or so - when I try to walk any distance at a normal pace, I get a quite severe pain low down in my abdomen, on both side - sort of parallel with my hips and in about a hand's breadth on either side. It's kind of like period pain - in the same sort of place, and quite sharp. Has anyone else had this? Should I be alarmed? Could I be any more clueless? Answers on a postcard ...