I totally agree, Journey. With google searches being done to explain my headaches after orgasm for about 2 years in a half, I was unable to find the term "POIS" anywhere, even in coital cephalalgia research study papers. I knew there was more going on than just "headaches", because I also had trouble remembering and concentrating that would last for days, including muscle pain. Yes, many articles state that masturbation is healthy and it is true. However, I am sure they are unaware of POIS. I had google searched "neck tightening after ejaculation", to find the term "POIS" on a Quora Q&A. As of now, Wikipedia does mention POIS on their coital cephalalgia page. Hopefully, this will save people lots of time and stop lots of suffering as you say.