Is this sign?

I’m wondering if my period is finally showing itself, but I just don’t know what is going on with my body.

But my back hurts so badly in fact that I couldn’t sleep well last night and could hardly walk this morning when I got out of be. I’m a bit shitty today, taking stupid things personally, getting annoyed easily then in the next breath down but to perk up quickly and then to snap at people. Then there is this huge zit on my face, head ache.

So to recap:
* back hurts
* grumpy / moody
* bad skin
* head ache

If my period doesn’t come then I must be going crazy.