Very smooth touchy sensitive skin in the middle of the penis shaft

[SamRam2014]

I'm 27 years old, not married and I've never had sex (please don't make funny comments about that, each one has his own beliefs). I'm having this problem for more than 1 year. I have extremely sensitive skin on my penis shaft (about 2 cm around circumcision scar, above and below). It is very smooth, thin and different than the rest of the shaft, looks more light in color. I didn't used to see blood capillaries in this area but now they are visible. If I touch this area with my cold hand or if cold water drops fall on it, it is really painful. When pubic hair start to grow and touch this area while I'm wearing my clothes in normal daily life, it is like a bee sting. I have to shave every week.
I have also hardness inside, above corpus cavernosum, between penis glans and circumcision scar. I went in September to a dermatologist, he told me I recognize nothing but I'll do tests for you. All microbial, serological and urine tests was negative, he told me that I don't have any STD and the issue about sensitivity is related to nerves. About the hardness he told me I don't know. He prescribe an antibiotic (Amoxiclav), ointment containing (nystatin, Triamcinolonacetonid, zincoxid olive oil) for me but it did nothing. He transferred me to a urologist. The first urologist told me I see nothing and transferred me to another one.
The second one told me about the hardness inside that it is a scar tissue and the disease is called Peyronie's disease (Induratio penis plastica), but it is not an extreme case. About the skin sensitivity he told me I don't know.
I used a cream for sensitive skin, olive oil but they didn't help. Two weeks ago I went to another urologist, the same answer, there is nothing. He did a ultrasound test to the bladder and the prostate and said there is nothing. He prescribed an antibiotic (Levofloxacin) and it did nothing.
I'm very distressed and depressed and can't focus on anything well. This skin problem is eating my mind and my life. I want to get rid of this skin problem as soon as possible. My life is ruined. I can masturbate but I'm afraid about the future when I get married, I can't predict what the situation might be. Please help!