Hey I am 18 and I have not had my period in about four months if not longer, I am not pregnant. I notice myself gaining weight and breaking out more. I get bloated and sensitive and weak every month as if i am about to get my menstral cycle but i never get it. Throughout the day i seriously feel naucious like 2-3 times. sometimes in the car i feel like im getting motion sickness and i get hot flashes like all the time i dont know whats wrong but it is getting scary:( help