POIS last for weeks

[DEANNX]

Some of my POIS symptoms such as brain fog, snotty nose, burning eyes, depression last only a few days after orgasm. But other symptoms such as bad skins, skins volume loss(both body and face look thinner) swollen nose and mouth, speech and concentration problems will take weeks to see noticeable improvement.

I am also seeing a lot of people saying some symptoms clear after 7 days but they see continued improvement on cognitive, fatigue, ect on further days of abstinence.

So POIS for a lot of people last more than just a week,Is there currently any theories behind that?