insomnia spells??

It's been rather depressing, actually, to be having insomnia for the past 3 days. I really don't know what's wrong with me. My body is so tired, yet, i just can't get to sleep. My heart pounds so heavily, i just feel like ripping it off. Somehow, the heartbeat and the heavy poundings affect my entire mind that i just can't shake it off my head the entire night. It feels like i'm having anxiety attacks..but i don't know what am i anxious about? Plus, it's the holidays...why do i feel like something is bothering me.

Argh, i really do hope to be able to sleep well. It's so uncomfortable tossing and turning the whole night! sigh. what exactly went wrong with my heartbeat?! :(