If was diagnosed with pcos polycystic ovarian syndrome, why would i start to develop unwanted facial hair and loss of scalp hair?

Too much androgens: With pcos the ovaries produce excess male-type hormones (androgens) like testosterone, which cause unwanted hair growth (face, lower stomach) and sometimes male-pattern hair loss. If not trying to conceive birth control pills are often used to lower androgens, sometimes with antiandrogens like spironolactone as well to decrease hair growth more than bc pills alone. Vaniqa may help on the face only.

Male hormones: Besides weight gain, abnormal ovulation, and multiple cysts on the ovaries elevated male hormones is part of the polycystic ovary syndrome diagnosis. The unwanted hair growth usually facially and on the abdomen and chest and hair loss is due to elevated male hormones.