No breaks? No joy?

I feel guilty about taking breaks when I work. I end up doing something unproductive instead or overeating. I think it may be because I don’t have any joyful things to do instead. Things like relaxing, journaling, or reading – that I enjoy – feel like passive consumption and unproductive = me feeling guilty. I seem to feel guilty either way. How do I stop this spinning circle and be more productive while taking breaks?