When I was pregnant with the wee man, I got SPD, which got worse with each subsequent pregnancy. With Rachel, it was sheer agony, and I could barely put one foot infront of the other. 
After I had her, of course, we were too ill to worry about the post partum physio exercises that they give you 
... in fact, we never got any because we were in the hospital attached to our respective tubes and stuff. 
So - it seems that this lack of care is what has caused the current problem. I was at the physio this afternoon, and it appears I have a severe pelvic instability. She showed me that if you put your hands on my hips and moved my legs in a certain way, my hips moved when they weresupposed to stay still. They aren't supposed to do that apparently. 
She's given me strict instructions not to be lifting the girls, (or anything heavier than a cup of coffee it seems!) and a small list of exercises that I've to do faithfully 3 times a day, every day for the next 2 weeks.
My posture is non existant, and I was appalled to be shown exactly how I am standing, instead of standing straight. I look like some little old wife of 80 instead of a sprightly 40-something. I know what caused that! It was holding Rachel and hunching over her - a protective reflex - trying to protect her within my arms, from the world. When I was able to hold her again, after they took the tubes and monitors off her, I can distinctly remember curling myself around her wee body.
Man, no wonder I've got backache! 
