I haven't had such anxiety over a cycle in quite some time. I spent all day yesterday sick and exhausted. Took a sick day at work. This morning I woke up feeling "off." Like faint/dizzy if I move too fast, and a nausea that feels like extreme hunger pangs. I ate a bit before I left for work, but now the feeling is back. I don't really want to eat, but keeping food on my stomach yesterday is what made me feel better for short periods of time.