Hiya Lainie!
Hope your little ones get better fast! The best thing to do is rest when they rest, because when they are up, they need you. If you work out, keep your workouts moderate and light, your immune system is working overtime to keep you healthy while you're exposed to the bug. Take an extra dose of Vitamin C and find an immune stimulant supplement at the health food store, like one called "Wellness Formula".
Take care! Sending love, prayers and healing to you and yours! Edie