I have a number of such weird things, the most dramatic being probably that I remember experiencing vivid synesthesia until age 4/5 or so, which kind of faded away has never happened since.
Obviously a simple example of fatigue of neurons encoding one perceptual quality enabling the over expression/perception of its opposite. But it just demonstrates how fragile our conscious perceptions are to every day minor sensory/perception deviations from their nominal correspondence.
After/during a traumatic experience, my mind disassociated from a basic aspect of reality. I knew what I perceived was completely nonsensical and misleading, but that didn't attenuate the very dramatic and warped perception in the slightest, for months.