Did I suffer any injury to the penis ?

I started practicing PE exactly 3 months ago, and during the last few weeks something strange happened, first of all I will explain how my routine was going:

5-10 minutes warmup using sock with rice or shower with VERY hot water.
5 minutes of stretching (Forward / Left / Up / Right / Down, 30 seconds each, that is, totaling 2 series of 30 seconds for each side totaling 5 minutes).
7 minutes jelquing on average (2-3 seconds per movement, alternating hands every 75 movements for example, usually I ended the session with 150 movements, that is, 75 in the right hand and 75 in the left)
5-10 minutes warmdown with sock with rice or hot shower.
50 kegels after the session, there were days when I used slow contraction (from 3 to 5 seconds), and sometimes I used fast contractions (1 to 2 seconds).

I have always followed this routine, I have an active sex life(I have girlfriend), but for a while (around 2 weeks), something strange happened in my penis, it manages to be 100% erect (whether with stimulation or without, for example, I date) , but I already put a porn video just to test if the erection was normal, and the penis really remained erect normally), but I kind of can’t feel that nerve when the penis is hard (you know when that “wink” with the anus , and the penis moves voluntarily, you can kind of feel that nerve (hard) as if it were in the body / neck of the penis), the sensitivity of the glans remains normal, I’m just not feeling this sensation that was just described, of the nerve / body “stiff” when the penis is erect (remembering that I can keep my penis erect, sometimes the erection also seems to last less if I don’t continue with the stimulus, but it always reaches 100%), this is a sign of overtraining or some possible injury to the PC / Nerve muscle of the penis ?? What can I do about it ??

Observations: On the days I usually have sex on weekends, I don’t practice PE (I’m usually following the routine practicing Monday, Tuesday and Thursday).

Have you lost sensation completely? Or only when hard? (I think you were trying to describe that point but I didn’t fully understand). Is the loss of sensation only to sensation, or can you not feel pain / temperature either? Is there any discolouration?

if you had done the jelqing exercises prior to masturbating it could be a mild bit of nerve damage leading to numbness. If it were me I would take a couple of rest days and see if I regain sensation

I haven’t lost the sensation completely, I’ll try to explain it better:
There is no discoloration, I can feel the temperature, I am having 100% erection, just that nerve when you give that “wink”, it seems that he is numb, the internal nerve of the penis, the penis gets hard, I have normal orgasms, the only thing I’m feeling is what was mentioned about not feeling the “neck / body” of the penis that precedes the glans, I have very exuberant veins next to the penis, is it possible that the jelquing on top of them harms something? Show it), and when I feel that numbness sensation that I started feeling AFTER my sections, these veins become very small, in my REST DAY they start to return to normal (2 on - 1 off), but I still feel that slight “numbness” in the neck / body of the penis, and it bothers me a lot, I don’t do the jelquing compressing the urethra or anything like that, I started having this problem these times, kinda the penis gets hard, but I don’t feel it, just glans and the orgasms (I feel the glans, etc., but the penis itself is very numb(only the “neck / body”), despite to be hard(I can get erections even without stimulation, the normal).

Notes: I don’t masturbate (really, my girlfriend and I really have a very good active sex life).

I see, whilst it doesn’t sound super serious as you still have the ability to feel pain, but there is none - if it were me I would stop PE until the sensation comes back