I never had this with my first pregnancy. It's horrid, keep waking up and having a drink as it hurts, but that only lasts about an hour before I wake again.
Seemed to have this problem for a week or so when I was about 6 months, it went by itself, and now has come back at 35wks.
It doesn't seem to be affected by heating on or off, so I'm in despair...
please tell me someone else has had this and it's going to stop when I've had my baby!!