I started about a year ago, but for the past few months i have not had my period. I think it might be because of my weight loss, but the thing is i have no idea how much i weigh! I have weighed myself and i think im ninty, but another scale had another weight and i have no idea anymore how much i weight! I eat normaly, breakfast, lunch,dinner. Sometimes i eat quite alot actually. My whole family has a very high metabolism and that is why we dont gain weight very easily. IS this something i should worry about?