(a few years have passed since my first post on this topic)
I did finally have a Dr. palpate my penis. It went down like this: over a period of months my erection developed an increasing turn to the left, about 2/3 of the way down the shaft. It always had a gentle overall left-hand curve but this was something different, a more abrupt deviation at one point on the shaft. I did some research, thought "Peyronie's, oh no!" because there isn't a generally-accepted cure. But I could not feel any plaques - hard scar tissue - that is normally palpable in the flaccid penis with Peyronie's.
One morning I woke up with a stupendously hard erection, so I took advantage of it and took several photographs of it from 2 angles (top, and side) and decided to see a urologist, with the photos as evidence. I got a referral from my PCP (an embarrassing phone call to the clinic's referral service: "my erection is crooked") and scheduled the appointment. Only male urologists available, but OK. I've got a real condition here, it's not a fantasy visit.
Arriving at the office, I filled out forms and finally was led into the Dr's offiice. We discussed curvature of the penis and Peyronie's, and he gave me a lecture on penile anatomy (most of which I knew already). He said the current thinking on causes of Peyronie's now is, the scar tissue develops as a consequence of trauma to the penis. (I thought, shit, maybe I shouldn't ask her to bite it so hard ... but I do love feeling teeth on my shaft ... sorry, my particular weird kink). I gave him the 8x10 photo blowup of my erection with the leftward bend, wondering if he would insist on viewing it in person. At his suggestion I dropped my cycling shorts and he began palpating my penile shaft, focusing on the section where the bend was most pronounced. Confirming my findings, he could not feel any evidence of scar tissue anywhere in the penis.
While he was compressing my penis, and for a minute or two afterwards, my penis was definitely elongating but nowhere near a real erection. I'm sure he was very aware of the expansion however. He then asked if I'd had my prostate checked in the last year - a low-key but real invitation. This kind of threw me, as there's obviously no connection between a crook in my cock and my prostate. If the Dr. had been female I would have said YES; as it was I responded "I'm OK in that department" and we ended the examination. He brought the photo of my erection to the young women staffing the phone and waiting room so they could file it in my patient folder - I thought that was kind of hot, them looking at the photo and doubtless enjoying the view, or laughing at it, or feeling sorry for me with such a bend in my male member. The Dr. assured me of confidentiality, which I didn't care about at all - I wanted them to look at it, of course.
In the two years or so since then, my erection has spontaneously gone back to approximately its normal gentle leftward curvature, so whatever was causing the kink has subsided or disappeared. No Peyronie's; and less cock-biting, just in case.