In several reports, patients diagnosed with anxiety disorder experienced panic attacks with ingestion of caffeine (18,19,20). One study reveals that six persons improved with caffeine cessation and remained improved for at least six months (21). Other reports reveal that some persons not afflicted with panic disorder, experienced panic attacks with intravenously administered caffeine (22, 23).

Written materials on panic disorder symptoms and anaphylactic symptoms do not clearly differentiate between the two. Parasthesia (pins and needle sensations), a feeling of choking, hyperactive symptoms, chest pains, and hyperventilation, amongst other symptoms, are common in both conditions. They're also common in many caffeine consuming persons.

This suggests that caffeine allergy may be responsible for many cases of panic disorder. In which case, panic attacks in allergic individuals are suppressed anaphylactic reactions - mimicking ADHD, and panic disorder. They're "have to get up and run" and "I think I'm losing my mind" feelings, brought about by increased neurotransmitter levels, associated with the "fight or flight" syndrome.

Dr. William Walsh connected anxiety and severe allergic reactions. Dr.Walsh maintains that allergic anxiety stems from a choking sense, and loss of air; not a psychological deficit (24).  Caffeine converts into many byproducts, including theophylline. Theophylline keeps the bronchial tubes open. Allergic individuals are less likely to suffer respiratory collapse, during an anaphylactic reaction.
A proficient Boston neurologist mentions that sixty-six percent of elevated CPK MM (creatine phosphokinase of muscle) levels are of an "unknown origin" (25). Innumerable mid to late twentieth century studies reveal that a high number of persons diagnosed with mental disorders, including personality disorder, mania, BPD, depression, catatonia, and schizophrenia, exhibit elevated CPK MM levels (26,27,28-38,39,40-50).

The high majority of these studies, and others, attribute elevated CPK levels to a commonality between patients with mental disorders. Not one focuses on caffeine allergy as a contributing factor of mental disorders.  CPK MM, a muscle enzyme, increases with severe muscle trauma, burns, inflammatory states, and poisoning. This may stem from drugs (36,37,38,39), including cocaine, alcohol, amphetamines, heroin, and stimulants (37,40). Antihistamines, salicylates, cyclic antidepressants, theophylline, and others also cause this disorder (37).
This condition, called rhabdomyolysis, stresses and inflames tissues, including brain cells, breaking down muscle fibers, and discharging potentially toxic cellular matter into the bloodstream (37). Caffeine poisoning can cause rhabdomyolysis (10,37,41).
Myoglobinuria is a symptom of rhabdomyolysis, but often urine myoglobin disappears early in the course of the disorder, or is absent altogether (37). Generalized muscle cramping (associated with rhabdomyolysis) (14,37) may also be absent, or subside early on. Accumulation of caffeine acts as morphine, alleviating pain and discomfort, often inducing muscle rigidity.
With toxins leaking into the bloodstream, the CPK increases. The higher the CPK, the higher the neurotransmitters, and the deeper into psychosis a person spirals.

In the late 1960's, Bengzon et al proposed that the leakage of CPK and aldolase might explain schizophrenia (26). Studies on patients with non-restrictive diets, concentrated on various factors, including medication, but failed to include caffeine as a possible factor (26). More recent studies have also overlooked caffeine allergy as a factor in any mental disorders, including schizophrenia.
A study theorized caffeine as a possible, psychosis inducing agent. Researchers eliminated patients' caffeine for a short duration. It was decided that caffeine aggravates symptoms of thought disorder and psychosis (42). Caffeine was reintroduced-never allowing for sufficient withdrawal times-and significant improvements.

Proportionate to toxicity, physical withdrawal may take up to 12 months, or longer. Recovery symptoms include memory loss, confusion, tremors, agitated states, insomnia or somnolence, and nightmares associated with amphetamine withdrawal. Following physical recovery, residual mental symptoms, primarily confusion and mood alterations, may exist for several months.
Evidence suggests that caffeine, and synthetic neurotransmitter altering medications, merely balance one another, and that upon cessation of caffeine, medication is no longer needed. Several reports indicate that upon caffeine cessation, tremors increased in lithium consuming individuals (43). In some patients, caffeine withdrawal increased lithium levels (44). After experiencing a 10-year course of seasonal BPD, a woman eliminated caffeine from her diet. She no longer needed BPD medication (45).

Caffeine may compete for benzodiazepine receptors (5). In which case, benzodiazepines reduce caffeine's effects and vice versa; balancing each other.  Chronic toxicity may affect functional aspects of every organ (14). Allergic persons may become sensitive to bright light, and resort to sunglasses. It's not uncommon to find dilated but reactive pupils on examination (14). Toxic persons usually present with a whitish, or grayish coated tongue (14, 46). Other findings imply that caffeine inhibits anaphylaxis, by suppressing histamine release (47,48). Due to caffeine's antihistamine properties, a skin test for caffeine allergy may be negative.
Several laboratory tests may be used as markers for allergic toxicity. A detectable Theophylline level in a patient not receiving Theophylline therapy, and an elevated CPK level are indicative of caffeine toxicity. Along with these, an increased glucose level (10,49) and an elevated white blood count (1,49) may also be significant of toxicity, as many patients assumed afflicted with mental disorders present with elevation of these (1,50). An elevated sedimentation rate, indicative of inflammatory processes, might signify rhabdomyolysis.

It's highly probable, that millions of consumers developed an allergy to caffeine, especially since availability and production increased rapidly mid- twentieth century. In which case, natural insights, and physical and mental health, have been sacrificed to chronic toxicity, resulting in organic brain, silently posing as ADD, ADHD, anxiety, BPD, depression, OCD, panic, and schizophrenia. Physical ailments resemble amphetamine poisoning, and include drug eruptions, masquerading as "rosacea."

Back in 1936, McManamy and Schube maintained that in all probability, many people of that era might have already been erroneously diagnosed with some form of mental illness. The doctors further predicted, that in the future, with lack of time, and proper medical insight, many doctors would not be able to diagnose simple disorders such as caffeine allergy, and would label many patients as psychotic (1).