From Havana Syndrome to Catastrophic Tinnitus and Extreme Electromagnetic Hypersensitivity: Cumulative Load, Triggering Peaks, and the Susceptible Phenotype. Why Sudden Onset Does Not Rule Out a Common Electromagnetic Mechanism

This fifth article in the series proposes a conceptual bridge between three conditions that the literature has treated separately: Havana syndrome (officially termed anomalous health incidents, AHI), catastrophic or decompensated tinnitus, and extreme electromagnetic hypersensitivity (EHS / microwave syndrome). All three share a strikingly similar descriptive profile: the abrupt onset of an intracranial sound or pressure, intense tinnitus, vertigo, headache, and cognitive, sleep, and mood disturbances. The National Academies report (2020) concluded that the most plausible mechanism for the acute phase of AHI is directed, pulsed radiofrequency (RF) energy, and the GAO report (2024) and the clinical studies in JAMA (2018–2019) document its sudden-onset phenomenology. Our central thesis, presented as the authors' hypothesis, is that the sudden onset of a critical episode does not imply the absence of a prior cumulative load: the acute event would be the outcome of a model of cumulative load plus a triggering peak acting on a susceptible phenotype. Within this framework, a sonic component may coexist, but the electromagnetic component (pulsed RF / near fields) can by itself account for the chain of mechanisms, including the microwave auditory effect described by Frey, and higher levels of stimulation could shorten and precipitate such critical episodes. This reasoning has a direct civilian implication: sudden-onset cases in the general population could follow the same mechanism of accumulation and peak triggering. Drawing on the authors' field evidence, we document how public urban exposure subjects people to severe fields, on the order of hundreds of V/m of electric field and tens to more than 100 mG of alternating magnetic field, in parks, at bus stops, and in transit areas located near electrical substations, high-voltage lines that cross parks, and electrical rooms adjoining bedrooms in universities, hotels, and resorts, as well as in school zones. The authors' field investigation at Downtown Doral Charter Upper School (DDCUS, 2022) recorded peaks of 200 V/m of ELF electric field and 31 mG of magnetic flux on the sidewalks adjacent to a school. We draw a strict distinction between what has been demonstrated and what is proposed: the Artificial Quantum Noise (AQN) framework is a conceptual hypothesis of the authors, not an established scientific category; and the convergence between AHI, catastrophic tinnitus, and extreme EHS is a phenomenological hypothesis, not a proven etiological equivalence.