I had an incredibly weird (and intense) sensation yesterday while I was doing dishes - I felt something snap or pop, very sharp and sudden, deep in the uterus/cervix area. I've had cramping and I've had some mild contractions and this was nothing like either - it was fast and blindingly painful, made me catch my breath and my knees buckle before I caught myself. I wondered if maybe my water had broken (?!) but I had no fluid (or at least no more than usual lately -.- ) and it didn't happen again. And, from what I can tell, nothing else has changed - it's not like the Cx have picked up or anything. So I have no bloody idea what that was all about... maybe the kiddo tried to shove a hand through my cervix?!
I had that off and on for my last week. I'm pretty sure it was DD pressing on a nerve or something. I kept trying to describe it to DH, and couldn't quite find the words, but you're right... it's like all of a sudden you want to fall to the floor. Not fun!