Is this permanent?

Hello

I have been PEing for about one year.
Last week I decided to try clamping, see how it feels.
Used a cable clamp, close to the pubic bone, on max erection. 3 x 10 mins if I remember correctly. Felt good, nice pump and feeling, no pain or anything.

But, since then, my EQ went down, no morning wood (I can still get hard though with stimulation, but it fades faster and not as easy to obtain).
And I also got this spots on the CS side of the member.

Do you think these brown-ish spots are permanent? And what are they? (see pic below)
When I get red spots they fade in 24hr max…

Thanks!

Looks like a bruise?

Yes, somehow. It’s clearly on the skin. Like a purple-brown color…
You know those spots that old people get on their hands? Extremely similar to that