Feel guilty on your off day(s)?

Definitely not just you! It's something I struggle with, too, and I'm trying to get out of the mindset that I'm doing something wrong or failing if I don't exercise every single day. I know the body needs rest, and I don't want to get obsessive. Usually my rest days tend to occur naturally when I end up being too busy with other things to fit in my workout, so I don't feel quite as ...lazy/jittery... as I would on a rest day with lots of time to spare. But when I do get really unbearably antsy on a rest day, I will sometimes just go for a walk or do something very mild like pilates.