I m not having my periods properly from last 5-6 months. It's always late by 6-7 days or sometimes 8-10 days. There's very less bleeding every month, just to assure me that i m not pregnant, periods ends in just 2 days. I've put on 8-10 kgs in past months. There's all acne and oily skin all the time on my face. Pimples kind of things are on my external genitalia. Foul smelling fluid discharge from my lower openings. Moreover i m ALWAYS irritated. What probably is the reason?