it is a possibility...a lot of girls get moody and sometimes even sick before getting their periods...if your mom got it when she was ur age then its a high possibility tht u are getting it soon...
yeah actually that is normal...i've done that a few times but i always stich it back..usually for me its to big though...im under weight cuz of my depression ive lost 11lbs in a month...but its normal...u shouldnt worry...well u should talk to someone though...it will help u immensely