Pain during periods. Plz suggest.

Hi.I first had my period at the age of 12 till than and now i am 19 my periods make me bedridden for 3 days i dont eat drink anthing my regular activities are stopped all i do is rest i dont bath my full body aches and swells i dont feel like living on periods the fact is 10 days before my period my body pains and after period my body pains. The pain dont disappear with periods i suffer from vaginal discharge also i have tiny dark hair outgrowth in my cheek area.i have lot of dark facial hairs on my face.and i have suffered from acne in the past.now acne appears only during periods and than disappears.i have pimples on my back and thighs.also i become easily irritable during periods.i dont do any tiring work but than also suffer from weakness and dizziness .i feel no energy. Bcuz of this i dont focus on studying.is it hormonal problem plz suggest.