Just wondering if anyone has had this. I'm 40. Always had irregular periods and had an op in 2019 for endometriosis on my ovaries (chocolate cysts). My periods were regular after that but short. Since I've had each Covid vaccination and had Covid twice i seem to be getting dark blood/discharge about a week or two after my period. Is it my age? Will it stop or do I need to make a doctors appointment. I did once try but I was in a massive queue and felt embarrassed about explaining it all. Thanks