Well when i first got it, it happened to me for 3-4 months and then i skipped 2 months and then it started again normal.
If u dont mind me asking when did u first have it and when did u have it last??
Explanation:
Heres some things on g00gle:
Natural causes most likely to cause amenorrhea include pregnancy, breast-feeding, and menopause. Lifestyle factors may include excessive exercise and stress. Also, having too little body fat or too much body fat may also delay or stop menstruation. Hormonal imbalances may cause amenorrhea.
They are similar to animals because they can move and they are heterotrophs (heterotrophs are organisms that cannot manufacture their own food and instead get their food and energy by taking it from organic substances like plant matter).