I believe this is what has happened to me. Aged 59 and 5 years post meno and battling through things but ok with quality of life . Thought I was on the way out the other side. Then out of the blue last November started with GERD/stomach problems and IBS like things, dry eyes suddenly worsened, my hair started to go grey suddenly and started to shed, anxiety hit me and never ever had it before, aches pains, gynae issues, pelvic floor aches, skin dried out, start of VA which I managed to halt with vagifem, tinnitus and horrendous insomnia. it all just fell off a cliff!!!!! GP didn't think it was meno at my age and 5 years post meno.... Had a full lot of scans, scopes and blood tests and all normal... Could not identify any reason for it at all. Saw Newson clinic started HRT varieties and after initial improvements the side effects got too much. Stomach issues and anxiety can go hand and hand and have slowly ruined life!!! Trying Citalopram (AD) at the minute but side effects are brutal.. so see how it goes. I have contact with someone on a menopause support group who is younger than me in her 40s and in the same situation - 5 years after periods stopped it all hit her.... HRT not working nor ADs and she is struggling terribly with anxiety and depression. My new GP says she sees a lot of women who have problems like this some time post meno. So yes I do believe it can happen.