Is brain allergy vs. PDD/NOS... a case of po-tay-to vs. po-tat-o?

I feel a need to re-iterate my "brain allergy" theory from an old post, which is not original to me. It is developed from researching online, along with what has worked and makes sense to me from following recommendations of our pediatric specialist in sensory issues, and talking to various alternative health providers.

Here it is in a nutshell: Allergies cause sensory issues. The foundation of all allergies is the body's inability to break down some kind(s) of protein, whether it be pollen, dander, peanuts, milk or gluten. That protein will then have a toxic effects on the system... either body, brain or both. The body is unable to de-toxify itself.

In the case of a brain allergy, some protein(s) acts as an opiate to the brain, causing anxiety and reasoning problems such as ADHD, PDD/NOS, Tourettes, OCD, tics, stuttering, etc.

In summary:
- The CAUSE is an allergy to some protein. ie casein (milk protein) in my son's case, and I think un-identified others.
- The SYMPTOMS are sensory issues (with whatever label manifests itself).
- The CURE is to identify and remove the allergen (it is a toxin to that person) AND equip the body in every way possible to deal with, and heal from, the stress of the previous exposure, and any on-going additional exposure you just don't know about.

Here's what we did.
- Elimination diet. For us it was dairy. After removing all dairy we knew in less than 24 hours that was the one our son was allergic to, because his reasoning and anxiety improved so dramatically. We literally called it a miracle. Especially bad are foods that could have 'modified milk ingredients' (ie. processed foods) and packaged milk
- Developed daily smoothie based on recommendations by a pediatric specialist in sensory issues (recipe in previous posts).
- Lots of vitamin C
- Weekly detoxifying clay bath

Recent additions to our smoothie due to recommendations by a live blood analyst:
- Added digestive enzyme supplement called "Aller-Free" to the smoothie to help break down protein
- Added an "Adrenal support" supplement to the smoothie to help deal with the stress and improves coping
- Added an "infla-heal supplement" to the smoothie to heal inflammation from systemic stress caused by the body's inability to naturally detoxify itself.