Suggest Treatment For Heavy Vaginal Bleeding Even After Taking 'tranostat-mf'

(Age-16 yrs,height-155,weight-50 kg')I had medication for spleen enlargement(as doctor report).I get sudden giddyness and backbone pain(rarely).Recently I had menstruation pain for which I was prescribed 'yamini LS',cheri,a syrup and a tablet.but I reported again for the increased days of my menstruation-14 days and still(usually I get it for 3-5 days).then I was prescribed 4 medicines but I took only 'Tranostat-mf(to stop bleeding)',and 'ofloxacin and Ornidazole tablets'.But the worse happened-I got heavy bleeding this morning-unusual for me!Pls help!