I'm 17 and I'm on foreign exchange for a year. I've been here 3 months today but I've only had one period since being here... I've heard it's normal when you travel overseas for your period to be off but I usually can tell a week before my period that it's coming. I cry, I feel sick, I sleep a lot..but I've been like this for 2 weeks now. Please sos...help. Am I normal🙄