I have PCOS. I usually have prolonged menstruation. First few weeks,it is lighter but after several weeks it is becomin heavier. I am 35 years old, no child yet. This month i had my menstruatio which is 2 weeks now. First week it is just a normal flow with some blood clots. Second week,it is lighter but the smell is stinky and color brown. Just this morning, whi.e having shower, a white spongy membrane came out,,.with some gushing of blood. I as worried. Last wed ,white clot also came out. I am not using contraceptive. Right now, when i stand,the blood just gush or flow heavily. This is the first time i experience this.I hope you can advice me what to do. I also experience cramps, nausea and stomach upset. Thank you.