deukalion, maybe you should look into a ADS/extender type device (autoextender, penimaster, penisplus, fastsize, JES, etc). I had a small injury to the ventral (underside) of my dick where the CS is and my CS would not inflate to max power like it used to (as well as the glans since they are connected) but after using a extender/traction stretching device for a week or two for up to 8-10 hours a day with low force traction my CS is truly in good shape again as well as my glans. I am making gains in my CC’s (and some skin) I believe in both girth and length as well (don’t truly know about the CS though, may be the same but at least it would be at normal level). I notice if I apply a light enough traction to my penis using these devices that my dick really likes it and wants to get erect as soon as I take off the stretcher device, so that is major PI of course and is related to what you’re saying. Maybe look into those type of PE devices for your situation to help get strong hard boners. ;)
Usually though just a couple rest days with no PE should be able to fix up any weak erections. I’ve been scared a few times before with those same situations and all it took was a few rest days with no PE to get strong hardons again.