Does one who experienced brown discharge and dark streaks for three days, then saw the white discharge, and subsequently fasted, prayed, and performed Umrah, and then experienced a slight brown discharge again, have to repeat the Umrah and make up the fast?

Yellowish and brownish discharges are considered menses if they occur during the usual period [of menstruation] or are connected to blood. If they occur outside the usual period, then your Umrah, prayers, and fasting are valid. If they occur during the usual period and you performed ghusl (ritual bath) before Umrah, then your Umrah is valid, and you must make up for the fasting. If you did not perform ghusl before Umrah, you have left out a condition for the validity of Tawaf, and you must go to Mecca to perform Tawaf, Sai, and shorten your hair. If you are unable to go to Mecca, you may exit ihram by sacrificing a sheep. If you are unable to do that, then fast for ten days.