Havana Syndrome Overview Havana Syndrome, or Anomalous Health Incidents (AHIs), refers to a set of unexplained, often chronic symptoms—including headaches, tinnitus, dizziness, vertigo, and cognitive dysfunction—first reported by U.S. and Canadian diplomats in Havana, Cuba, in 2016. Often starting with a localized, intense sound, these cases have been reported globally. The cause is heavily debated, ranging from hypotheses of directed-energy weapons (like microwaves) to theories of mass psychogenic illness or environmental factors Symptoms Sensory and Auditory Issues: Intense ear pressure, ringing in the ears (tinnitus), hearing loss, and sensitivity to sound. Neurological/Physical Symptoms: Severe headaches, dizziness, nausea, vertigo, and unsteadiness. Cognitive Issues: Memory loss, poor concentration, and confusion. Visual Disturbance: Blurred vision, diplopia, and light sensitivity. Onset: Symptoms often began suddenly, sometimes at night, and were associated with specific, di...
Chronic Migraine Overview Chronic migraine is a condition where you have frequent or long-lasting episodes of headaches and migraines. With chronic migraine, your symptoms can shift daily (or even hour to hour). That can make it hard to tell where one migraine or headache ends and another begins. Symptoms Chronic migraine symptoms are the same as those of episodic migraines. Chronic migraines simply last longer or happen more often. Chronic migraine also involves headaches. To receive this diagnosis, you must have: At least 15 days in a month where you experience a headache or migraine. This must happen for at least three months. At least eight days per month where your headaches include migraine symptoms or features. This must happen for at least three months. Migraines symptoms As mentioned, migraines aren’t the same as headaches, and they can take different forms. The symptoms you experience from migraine to migraine can also vary. Migraines happen in up to four stages (but not ever...