Hello and welcome

well many here love cats too

Here are a few resources that might help you:
https://www.susans.org/forums/index.php/topic,193402.msg1724354.html#msg1724354Concerning hrt, its possilble there are hormone blockers first. Yet there were cases of people getting hrt under 16.
Well concerning blood clots its mostly with oral intake, like pills.
Many people now use micronized bioidentical estrogen sublingually. That way the liver is bypassed with intake and clotting is supposed to be less.
There are other forms of application, patches, gels, implants and injections.
Concerning health, bioidentical estrogen and progesterone is available.
Many people have used it for decades.
Cases that make headlines might have different causes, or a predisposition like a liver condition, which should be rare.
Well, look around, take part, ask questions...
alone writing often helps getting a clearer view...
hugs