I haven't had my period for probably a year an a half to two years. Last year around this time I did get Nexplanon implanted in my left arm because my gynecologist said it would be a good idea to help the period problem as I had already not had my period for about a year before that. I haven't had one since. I am overweight but I've always been overweight and my periods used to be pretty consistent since I got them. I am also have high blood pressure every time it's ever been taken even though I am only 16. I am also unusually tired all the time. I usually get anywhere from 8- 12 hours of sleep and wake up still completely tired like I haven't slept in days. I'm not under any stress and I don't do vigorous exercise. I'm not sure what could be causing these problem.