People simply over complicate things when it comes to symptoms. The body shuts down in times of severe trauma, and stress as proven by salivary cortisol in patients with PTSD.
I take Thyroid Hormone, Hydrocortisone, and am Gluten free. Brain Fog is gone. I found a good doctor that prescribed me meds, and that is that. No BS Parasite, Candida, or special diets. I'll be back to health in 6 months to 1 year.