Only seems to be on my period but my carb cravings know no bounds! I struggle with a weird pressure in my head and an exhaustion that means I have to go to bed later afternoon and I can sleep through until morning. I've just told my husband I'm off to bed now with it only to rally after some carbs. But I know it's temporary and I'll get it back soon. What is this and how do I manage it when it lasts for 4+ days?! I feel gross