I have 8 autoimmune diseases:
Myasthenia Gravis
Osteoarthritis
Sjogren's Disease
Ankylosing Spondylitis
Spinal Stenosis
Excema
Psoriasis
Seborrhea
I was bed ridden for 10 years and weighed 540 pounds. I found a diet that put all my autoimmune diseases into remission and resolved many other health issues too. I've lost 215 pounds, not all of it on this diet. I used to take 19 prescription medications, now I take zero meds. I do take a few natural supplements, mostly for my thyroid which have helped immensely.
The diet is a subset of KETO called Carnivore. I eat ZERO carbs, nothing but meat, fat, butter, salt and water. Nothing else except occasional black pepper and granulated garlic, but not often. This diet has changed my life. I was able to return my wheelchair and move out of the wheelchair accessible apartment. I have been amazed at how many foods in the standard American diet are very bad for our health. The hardest part was detoxing from sugar and oxalates dumping. It turns out almost all chronic disease is caused by what we eat and can be resolved in turn with diet.

Very impressive. Do you ever eat any carbs? I have seen some on carnivore do end up eating a small amount of fruit.
Does this become monotonous?
How much meat do you eat daily? Jordan Peterson says he basically eats beef and salt.
Do you also eat fish?
Do you have an "O" blood type?
Reversing all those autoimmune conditions would mean profound healing for the gut.
Do you use any supplements?