Weird period issue, helppppp:[?

ok so maybe a couple weeks ago my period was due and like always a week or two before my face breaks out, i get cramps, bloated, and sometimes nauseas, but it never came then i got brownish discharge and i figured it was from my last period and my next one is due anytime... it never came i also become severly moody (im like the spawn of satan when it comes to all this ahhaaa) and i stil was moody and still getting cramps and now maybe 2 weeks or 1 later, i stil havent gotten it and i still get cramps and it always feels like im getting it any second and it never actually happens. i always say any day now i will get it, well im kinda running out of any days lol , im just worried has an y one expirenced the same thing, i am ually active.