Sore erection, not skin, not painful

I have noticed that if I have a very sexually active weekend with my girlfriend, by the end of the weekend, my erections are becoming sore. Now I have started jelqing more than I used to, as well as edging/ballooning and some simulated clamping (using hands instead of clamps). And after a couple days, I am getting the same feeling of soreness. It’s not skin soreness, and is not there when flaccid or when stretching, only when erect, and it gets more sore the more erect I get, but it never hurts. I have a feeling its my tunica or CC growing, or trying to grow, but I wanted to get some input, and I am wondering if it’s ok to continue with the soreness (remember it doesn’t hurt) or stop and wait for it to pass.

I never really thought of simulated clamping with your hands. That is a good idea for a person like me who wants to do only manual exercises. Do you have discoloration?

Nope, but I only recently started doing exercises beyond stretching and pumping, so who knows what will happen, but it better be worth it if it does get discolored.