Postpartum Blues?

Ugh. I'm six days post partum and my hormones are EVERYWHERE. One second I'm over the moon happy, the next I feel nothing at all, the next I'm bawling because I'm happy, then I'm bawling because I'm sad. I cry at least three times a day. I can't help but feel like there is something wrong with me. This is normal, right?! When can I expect to feel back to myself.