Chicken, Thanks for your suggestions.
I had a very slight stinging pain in the glans for a while which came and went, but that at least seems to have gone now. The pain wasn’t really localised to the spot, but felt more “internal” in the glans around the area.
I tried hot wraps and massage under the shower, but if anything it just made it worse, and the stinging pain came back so I stopped. It seems better just to leave it alone. The thing is, in terms of appearances it seems more or less unchanged. It is more noticeable at some times than others, but no real difference.
I stopped all PE when I noticed it, then re-started for a couple of days, but then thought I should let it heal fully. I have left it completely alone for at least 20 days now.
I have a feeling I got this from gripping too hard when stretching, and maybe crushing a vein or capillary but I’m not sure.
Has anyone been left with longer lasting spots and just gone on with PE, and had them fade eventually when the penis grows new capillaries?