I just want to say I understand your frustration and you did nothing wrong. The doctor was wrong in how he treated you. I have to say my first symptoms of my autoimmune started prior to 1994, and I wasn’t formally diagnosed until 2024. There was much discouragement, frustration, and just pushing past all of the symptoms in the in between times.
I want to encourage you to keep trying, keep pushing for referrals, researching and finding different doctors. There are some good ones out there that can think outside the box, really listen, and be kind and considerate as well.

Saying a prayer for doors to open for you to reveal a diagnosis and treatment that will help.