Im 19 years old and Ive had my period for about 4 years. It was never regular. I would sometimes have it for a few months straight or skip a month here and there, but this year my cycle has been crazy. I had it in Feb. then skipped march april and may got it in June (which it was like every other period Ive had- 7 days normal bleeding, cramps, but not too severe) and now no sign of it in July. I also get cramps like Im getting my period but I dont get it. And vary rarely Ill discharge clear/white, its kind of liquidy/stringy, and its A LOT. I should also mention Im not sexually active. Im skinny: about 5'7 and weigh about 100 lbs, i have a hard time gaining weight, but so did my mother and sister around this time in their lives. Very worried, please help.