I had exactly the same last year at 54.  I was just post menopause (no periods for 12 months), then really sore boobs followed by extremely heavy bright red bleeding.  This was very unusual for me as my periods had always been very light.

Urgent referral to gynae.  Ultrasound and uterine biopsy (inconclusive), then full hysteroscopy.  Despite having a slightly thickened endometrium (9mm) I was told everything was fine and my uterus looked normal.  No rhyme or reason for any of it and I'm convinced it was just one last go as I've since pretty much finished again.

Any post menopausal bleeding needs to be checked out, but I hope my experience will give you some reassurance.  Dr Google and over thinking is your worst enemy, try to avoid both if you can.

Wishing you all the best.

Thank you for your reply I am going to try and get a Drs appointment today too to see what they say ! I hope all goes well for you it's such a worry I can't think of anything else ! 

Oh thank you this has given me some reassurance and so glad your ok! It is such a worry it all came out of the blue for me, so it's scared me and as you say googling makes things so much worse ! I will try and get a Drs appointment today, it's the waiting that makes things worse ! Thank you so much for replying to me! 

You're doing the right thing getting a Drs appointment, it's important to get this bleeding checked out.  Waiting for appointments and tests is never easy and it helps to keep busy to distract yourself.  Good luck with everything.  You'll have some peace of mind when it's sorted.

Hi me again, I have an appointment now booked for tomorrow! Can I ask how did your appointment go I hope all went well ! Still terribly nervous thou!! Wishing you well