currrently 31.5 weeks pregnant of course with twins. I'm used to pelvic pain since second trimester but it as got worst today feels like that shoots down my legs and I can barely walk or get up after I've sat down, even turning from sides...is this normal? does this mean one of the babies have dropped? I can feel one babies head. They are both head down as per scan on Monday. I don't want to go into labour yet..is that what it means