Heavy bleeding after mennapause help

hi all I'm new to this group and hoping to find answers.. I was 34 when I went through early mennapause I'm now 45 and for the last few months have had heavy bleeding! have ultrasound showed my womb lining was thick .. had hysteroscopy which showed nothing .. I have been told I've possibly started periods again! I'm really not convinced I have bleeding every 2 to 3 weeks my life is just a mess it's such an inconvenience for work any help would be much appreciated 🙃 ps apologies for spelling mistake, (menopause)