i have been taking Yaz for over a year now. about 5 weeks ago, i started Phentrimene (weight loss). i ended my period 2 weeks ago. since then i have had brown discharge. two weeks before my period, i also had the brown discharge. i know the uterus cleans itself, but is it normal for it to be doing it for this long and before the period? there is no itching or paid or unpertected sex in this case. any thoughts?