My weird version of the so called Mandela effect: whatever happened with post micturial spasm?

Since the so called “Mandela effect” begun to be discussed, I have usually dismissed it as a poor memory effect, and also never thought it as of much relevance or importance even if many people tend to agree on certain versions of it.

However, I have never been able to explain to myself why, after having researched it many times under that name, I can’t find at all any reference to the term “post micturial spasm” (popularly known a “pee shivers“) and the only technical name that can be found now is “post micturition convulsion syndrome”. I have a personal interest on this topic, being an often experiencer of it, and having curiosity if it has any connection to the similar but much more intense orgasmic spasms.

Does anyone else here recalls the “post micturial spasm” terminology?