I'm probably about to embark on HRT, so I can't comment on whether this will add to weight BUT I can say this: over the past 10 months (not had a period), my oestrogen has really fallen, and my body shape has really changed. For me, noticeably heavier about the ass, legs and tummy, despite doing bootcamps/lots of HITT, and completely changing how I eat (and I was super healthy before) to meet the challenge of cortisol/insulin issues that face peri/menopausal women.
Interestingly, I weigh less on the scales.. It's a head fuck. Absolutely not what we want on top of every other issue that meno brings.
I'm seeing a consultant on Tuesday, with a HRT specialism, and weight gain will be on top of the list. I shall report back!