I’m not expert on health, I’m figuring this journey out myself.
But sometimes, I find people are attracted to age old wisdom, Ayurveda and nuts and seeds with tales. This is for you.
Google the word “tukmaria”. It’s a seed used in a fun sherbet styled drink most Gujaratis know as “falooda”. However, it’s also (as I’m told) great for heavy periods as it cools down the body.
You can probably find it at your local store and if they look at you like you’re crazy, say the words “falooda seeds”.
Soak some overnight. Have in cold milk with a dash of sugar (they recommended sakar) first thing on the morning of your period before you have anything else.
It will cool shit down.