Definitely tell your GP. They should send you straight for an appointment with gynecologist.  The sooner they check you out the better. A smear won't don't. I had post menopausal bleeding at aged 58 and was seen within two weeks. Had internal ultrasound (just a bit uncomfortable) and then a biopsy. Fortunately I was OK. The consultant I saw said he saw 80 women a month with post menopausal screening with most being ok, but the sooner you get it looked at, if treatment is needed, the quicker the better. Don't put it off. Wishing you good health. 

Thank you Mrs MayMay. Glad you’re feeling well!

Just an update on me , eventually got my hysteroscopy yesterday, following the TV scan almost 3 months ago(where they weren't too concerned)not too traumatized by it, was a little painful but not excruciating (probably on par with my years of painful periods)There was a couple of polyps removed and gynaecologist didn't think there will be anything sinister in the biopsies, so just confirmed what was seen on TV scan . He reckons it's to do with my HRT and not getting enough progesterone so have had Mirena coil inserted and HRT to change to just oestrogen. I will get biopsy results back in around 5 or 6 weeks , hopefully they are fine .

Just an update on me , eventually got my hysteroscopy yesterday, following the TV scan almost 3 months ago(where they weren't too concerned)not too traumatized by it, was a little painful but not excruciating (probably on par with my years of painful periods)There was a couple of polyps removed and gynaecologist didn't think there will be anything sinister in the biopsies, so just confirmed what was seen on TV scan . He reckons it's to do with my HRT and not getting enough progesterone so have had Mirena coil inserted and HRT to change to just oestrogen. I will get biopsy results back in around 5 or 6 weeks , hopefully they are fine .