I have to confess I think my libido has decreased as well
The first few days of SS i was too tired and hungry to want to do anything, but now thats changing and we're back to 3-4 times a week, which doesn't sound bad but it used to be 7+ times a week!!
I know once i have shifted a few more pounds i'll be more adventurous!!
I've noticed this too, I think I'm so much more concious of what I look like at the mo (and hating it) I feel a bit embarrased about getting my kit off in front of OH. Hoping as i skrink i'll be more confident again.