Suggest Treatment For Brown Color Spotting

I've never had a normal period but this time it's really werid. I don't think I've had my period or any type of spotting since November of last year, so that would mean I haven't had my period in almost 11 months but recently I've had really light brown spotting for the past five days. I'm still a virgin and I haven't done anything sexual either. And when my period was 'regular ' I would get it every couple of months. I started my period when I was in the 7th grade and I'm a senior now. I also have been feeling really tired and moody.