HI Ginny,
no, I have not excercised yet but plan to start that up today. I will start slow because my back has been hurting for about a month and I do not want to make it hurt worse. As I lose the weight I know it will be better. I carry a lot of my weight in my belly and I know it pulls on my back, but I am working on that !!
I will start walking and doing a few excercises today. I wanted my first two weeks on low carb to be about getting used to the food, and now it is time at day 16 to add in the excercise !!
You may see yours get better in time also, it may just take some time.
Stephie