I've been extra tired lately but can't sleep. i took a multi vitamin today and i hardly eat but when i do it's usually healthy. and not pregnant. ?

Many things: Poor sleep can cause fatigue. We need an average of 7.5-8 hours of sleep/day. Watch the documentary sleepless in America for more info. Natural ways to improve sleep are exercise, no caffeine after 12, meditate, calm's forte or valerian root. You can also ask your doctor to confirm you are not low in iron, vitamins, thyroid or possibly low progesterone which can help women sleep.