Hey Tress
Well, yes, it absolutely does sound familiar. I can possibly help you work out the hormonal trials - as I've done them all. And I'm very interested in your MCAS and what you call your MCAS supports.
So firstly, yes, I have tried to supress for years. But nothing works now. I'm currently on 75mg desogestral, which I took all through my 30s with no issue - but 29 days ago I got a breakthrough bleed, triggering one of my worst months on record. And still going ...
Now. I did start at double dose desogestral in April. That supressed very well - low FSH and lh. But I was plummeted into agonising pain, like chem meno - so I can only assume too much supression, too fast. Now my FSH is sky high. So there is no supression.
However, I'm staying on it for the time being as it does stop ovulation. So it might just stop the massive peaks.

Slynd I couldn't tolerate.
I tried practically every combined pill going about 5 years ago. I needed 30mg estradiol to help stabilise me. Felt pretty ill on the 20mg ones. But the 30mg triggered migraines and this awful nose pressure - which I suspect may be MCAS.
Now. My thoughts have moved on from all those old posts you've got on. I believed in estrogen dominance for years. I chased the estrogen (like you are doing now) but chem meno highlighted estrogen was not my issue. As plunging to the depths of no hormones brought on my worst symptoms. So for me, it's either the fluctuations or it's my nervous system reacting. I think both.
Then adding in hrt in chem meno just triggered the MCAS type issues. There was no hope.
So here I am. Still fluctuating. Still in hell.
So, could you tell me what your MCAS support is??? I have my specialist appointment in a few weeks. I did try ketotifen last year via my GP - it triggered massive nose pressure flares within 24 hours. It was really bad. So I stopped after a few weeks.
I'm liking Gupta. I am struggling to see how all my issues are nervous system. But I am under a Neurologist who has already told me the are. But he takes no account of my hormonal fluctuations. I figure doing Gupta is better than googling my life away.
I'm also about to start therapy for chronic illness and trauma. Because I'm no longer coping.
So. That's where I'm at. I'm no longer chasing the E levels. In fact, mine is a lot lower these days and I get a lot of night sweats and hot flushes, which ars new this year. But still my symptoms come the same. Especially this month. The bleed triggered it.
I still assume fluctuations. X