I also have a lot of stress in my life due to OCD. When I do have a period they tend to be
heavy with menstrual cramps. Sometimes I get
clotting, but small pieces, and shreds, not balls, although sometimes they can be about an inch+ square but flattish.
As my Mum was irregular I never worried about it and put it down to genetics and sometimes stress, but now I worry about PCOS and/or endometriosis. This year I have also become more regular (i.e. around 30-32 days although one was 24 days.