There is a theory (maybe inspired from "dr Lin" so it's not scientific!) :
Some guys with muscle spasms (like me) have not enough GABA. And then the orgasm is not well down-regulated, it's a strong orgasm if we can say. Because GABA is a slow down neurotransmitter.
And then dopamine/adrenaline is not well regulated.
The points which can support this theory :
-some symptoms of low Gaba (feel cold after ejaculation muscle tremors...)
- symptoms of low dopamine on day 2 (lack of concentration, muscular weakness...)
- the fact Taurine suppress pois symptoms as a gabaergic supplement.
- the fact some guys improve symptoms by smoking cannabis
- premature ejaculation
- magnesium and B6 might help as gaba cofactor
(i have clear Mg deficit since I got pois)