i am a 44 year old woman whoo recently started having problems with my menstrual cycle. I used to be regular, every 28 days, but now it seems like my period comes whenever it wants. I have skipped months, been 2 weeks late etc. Periods have been scant with blood until this last one which I bled heavy for 6 days! After my periods I get a brown discharge which has a foul odor. Not sure what is going on.