Even small amounts of foods on the "banned" list cause brain problems

I have been watching for smaller and smaller reactions to foods that I suspect that cause brain fog.
the fog is characterized by and includes physical symptoms of:
Anxiety,
Depression,
loss of short term memory,
inability to add numbers,
inability to type in a co-ordinated fashion,
left leg dragging and un co-ordinated ( when really bad I fear driving),
lymph glands hurting,
eyes burning and blurry,
private parts burning,
ears popping as if pressure is building up, but there is no pressure
itching on different parts of body, usually back and abdomen