Pat Hannon's nightmarish itching began late last year when she woke up convinced insects were feasting on her legs. The sensation, which she described as 'a mosquito bite on steroids,' sent her on a desperate search for answers that would consume months of her life. After washing bedding, calling pest control, and even considering home fumigation, she found herself in urgent care where a doctor spent two minutes before dismissing her concerns.

Hannon's experience reflects a broader crisis affecting millions of Americans who live without medical diagnoses. According to the National Academies of Sciences, Engineering and Medicine, most people will experience at least one diagnostic error in their lifetime, sometimes with devastating consequences. This challenge is particularly acute for those with medically unexplained illnesses - conditions marked by symptoms like fatigue and brain fog but few visible signs that doctors can identify.

Entomologists like Gale Ridge at the Connecticut Agricultural Experiment Station have become unlikely healthcare intermediaries, seeing thousands of people convinced they're infested with insects. Ridge believes most patients she sees have legitimate physical conditions - from autoimmune diseases to thyroid disorders - but are misidentifying their symptoms' causes. With health care often fragmented and specialists failing to communicate, patients like Hannon find themselves bouncing between providers, desperate for relief from suffering that remains medically unexplained.