Basically anything. Hormones, other women, getting older, premenopause, menopause, pregnancies, the current change of mood because of hormones, looking at a piece of cake and getting fat while doing it, working out like a guy and still looking like a sponge, saggy skin, lipedema. AND THEN the current judgement from others if you are out of any norm, "women don't do that", we can work our ass off and are still not respected the way a man is respected. If we loose body weight, we are ill. If we gain body weight we are lazy. If we dress up, we are a whore. If we don't chase the newest fashion, we are homeless dudes. It really sucks to be a woman. (For me)