So my periods have never really been on time but they’ve always lasted around 5 days from being heavy then gradually lighter. In the last year they have been all over the place, missing them, really light then really heavy etc.. Then it came to a point where i didnt have a period for 3 months! So May was my last period then i had nothing! I also did a pregnancy test and it was negative. 2 weeks ago i went to the doctors. She thinks i might of PCOS so she booked me in for an ultrasound (which i havent heard anything from) and to see a gynaecologist (which isnt until October!!!) Anyway, 3 days a go i was sat watching tv when i felt blood coming out (sorry for too much info) so i went to the toilet to sort myself out. As i was sat on the toilet having a wee i felt this what i thought was a blood clot come out of me which plopped in the water. It did startle me but i assumed it was just a huge blood clot. I looked at it slightly and it was probably about an inch long!!! So today ive been on this period for a week and im still heavy! Im now getting really panicy constantly googling my symptoms 
hope someone can shed some light on this! Thank you!
I just want to add that i didnt have any pain! I didn’t have any cramps in the lower abdomen which many symptoms suggest. I just had lots lf blood.