On top of changing eating habits, stress and anxiety can feel overwhelming and exhausting — they can literally deplete your energy reserves, Ackerman said. This means that you may feel too physically tired or may not have the inspiration to exercise right now, and that's totally normally and OK, O'Malley said. She added, "It's OK to rest and take a break from your usual routine." Remove the personal pressure of feeling like you have to work out, and focus on asking yourself what you really need right now.