Long Periods, Persistent Hunger

Okay, so I have a problem.

I skipped a period and now this one is twice as long and it sucks. My mom says it normal and no reason to worry...

But lately I feel like I'm STARVING. I've been keeping my usual diet of 1,200 calories except a ton more sugar because it's the only thing that puts a dent in this hunger!!!

I've drinking water, almond milk, orange juice... Nothing really has been helping. Even as I eat or finish a meal, I still feel like I'm not full, but a little nausea at the same time...

Is this "normal"? Halp....