Unusual Fatigue Location

Hello all

Long time lurked, started my PE journey around 8 months ago with manual stretching and JP90 and after 5 months went to vac hanging.

Current hanging weight is 3.25kg. I generally go for 2 hours with a break imbetween but recently been encountering some wrap/tape issues on the 2nd hour for an unknown reason hindering me so last week has only been 1 hour. I hang BTC to get as much of a stretch as possible.

So I’ve noticed whilst I’ve been hanging for the last 1.5 months that I don’t get fatigue in the place most people do. Rather than anywhere near the suspensory ligaments (anatomically speaking) I get a fatigued sensation at the ‘root’ of my penis around an inch out from the anus towards the testicles.

It fits the general description of fatigue, sets on in the last 20mins and slowly escalates till I’m looking at the clock due to the discomfort counting down the minutes. Not painful per say just a very deep stretching discomfort, its relieved if I lift the weights to relieve some of the tension and sets back in around 5 mins after.

My question is what am I fatiguing so low down?

I did a google and I think it might be the perineal body in terms of location but it’s rather new territory, I tried searching the forum but to no avail

Any ideas on what it is or if its detrimental?