Side effects?

I've recently started on the pill (about 2 weeks ago)  and have been experiencing what I think may be side effects. I've been extremely emotional (crying for no reason all.the.time), I'm always hungry and craving certain types of foods I wouldn't usually eat, I've become quite bloated, often feel uneasy in the stomach, and I feel as though I'm actually going crazy (I know this may sound weird but I'm very different to my usual self). I'm not sure if this is common or if there's something else going on... if it's related to the pill, will these symptoms lessen over time?