Anomaly

Anomaly is something that which is not easily classified or something that deviates from what is standard, normal, or expected. An unexpected, unusual, or strange condition, situation, or quality particularly in contrast to the baseline analysis, is an anomaly. This does not automatically suggest something paranormal, but rather points out an experience, an observation, or possible evidence that stands out from its surroundings as unusual. Some of the most commonly reported: are:  shadows; orbs; footsteps; taps and knocks; flashes of light; cold spots,  or warm spots; voices and whispers.