Hi Coll, I was on (and sometimes off) citalopram for years and basically never had any menopausal symptoms till I came off it for a year at 55, after which I developed horrendous VA symptoms and now need quite a high dose of hrt.
I'd try to find another GP if possible if you are happy on oestrogen! Based on my experiences I would say citalopram seems to suppress some meno symptoms but it's almost impossible to get off of, plus the start up is generally awful too.
For me, I need them for anxiety based issues but I've also developed facial pain and jaw issues which now mean I can't take them. It's called TMJ, and is an uncommon but rare side effect. ADs make one more foggy-headed in my experience but other people feel clearer.
Long story short, I'd avoid ADs for purely meno symptoms but they help psych issues greatly, however the side effects and potential withdrawal issues if you come off are considerable for some people. They don't necessarily sound like the answer for you, from what you have said in your post.
I hope you manage to get more oestrogen though!!!