I heard about this syndrome first time and turns out it exists!
Pinocchio Syndrome( gelatophobia) is a reflex epilepsy. Significant part of the seizures can be regularly provoked by a triggering factor (most often a sensory stimulus.) Reports on unusual epilepsy had occurred when the patient lied. Patient having this syndrome experiences attacks with loss of consciousness and generalized convulsions. These attacks starts with sensations the patient regularly feels several times each day. They consisted of epigastric constriction, a sensation of hot flush rising fro the stomach to the head then auditory and visual illusions, for instance sensation of hearing in echo with intense anxiety. More than a third of attacks occur when the patient is lying. Other episodes occur without obvious factors. Lying has mot previously described as a triggering factors of seizures but, accdg. to certain authors, in some very rare cases, seizures have been regularly provoked by emotions. Emotions are linked to the limbic lobe. When the patient is lying, he could feel a particular emotion and this limbic stimulation may have triggered epileptic discharges in the amygdala.
The Dembo- Rubinstein method is used for diagnostics of gelatophobia. If you haven't heard about it yet go ahead https://www.google.com/