The BMI thing can be a joke is all I have to say. I was classified as overweight, when I was 63kg (I'm 154cm tall) and a size 8-10, which is what I was when I got pg (BMI of 26). I'm now "obese" with a BMI of 33, at a weight of 78kg and a size 16. I certainly wouldn't agree with that. I was 98kg when I was in labour with the girls.
Being overweight does predispose you to things like gestational diabetes (which I had), but so does family history (which I also had). I had a lot of trouble with my hips, but that was more to do with the weight of the girls, and the weight I was carrying from fluid. I also had a lot of trouble with reflux - again, attributable to the girls (or, more specifically, Amber hanging around in my ribs). My BP rose a wee bit, but not to dangerous levels (although I had low BP to begin with, so probably a good thing).
My post birth GTT (diabetes test) shows that I'm 0.1 off the level to be classed as diabetic now, and I have been given a tester to try to get my blood sugars down before we get pg again, so I need to watch my diet, exercise and try to lose some of my weight. I am pretty much guaranteed to get GD again though.
Have they classed you as diabetic now Dawn?? I only had my follow up GTT 2 weeks ago, and really surprised the diabetes nurse that it wasn't a definite yes for diabetes, mainly because my sugar levels were so high and erratic during pregnancy. Like I said though, I'm only 0.1 under the level, at the before, 1 hr and 2 hr levels.
I think the biggest thing I have noticed with extra weight and having a c-section is the "apron" which I imagine is worse with carrying weight, than if I wasn't carrying the weight. It gets sweaty