Hey ! Thanks for reaching out. I don't have personal experience with Arimidex, but I did find this forum post from another member who said they tried it. The post is from a few years ago, but it's worth a try to reach out and see if they can give you some advice!
https://endometriosis.net/forums/aromatase-inhibitor-for-endometriosis
I hope that helps! Let us know if you have any other questions!
Warmly,
- Kat (Team Member)