22 Hard-To-Detect Illnesses, From The Commonplace To The Truly Bizarre

6. Lyme Disease

Lyme Disease can be attracted through a single tick bite and is often confused with the flu given the two illnesses share symptoms such as fever, fatigue, and the chills. However, this tick-borne illness can become far more serious if left untreated, potentially leading to neurological disorders, impaired memory and heartbeat irregularities.