I’m not informed enough to give you advice on this. I’m only replying because I saw you had no replies, so I’m gonna reply so your post pops back up at the top so somebody who might know can see it!
Not an expert but definitely Pied can be cured without Kegels. Pelvic floor issues, maybe see a doctor
This guy healed PIED firstly with reboot and then kegels and reverse kegels: https://www.reddit.com/r/NoFap/comments/2rt6k1/ed_cured_experiences_and_theories_on_my_different/