I started my periods when I was 13/14, but since then I have literally only had 4 I think, Im now turning 18 in a couple of days... and worried about what it could be...

I have the same thing happen to me!
Tell me... does it make your stomach swell and get hard like a rock?

You need to see your obgyn. They can help you determine what the cause is.

When I have me period? Yes like really bloated, but I though everyone gets like that during your period. Also the ones I have had ave been really really heavy. I had to take the morning after pill a few months ago and that caused me to have a period, which was unbelievable heavy!