Please help! problems with orgasm and urination!

[Sick1488]

First manifestations of the problem began when i was 15. At one beautifull day I felt Symptoms of cystitis (Heaviness and pain in the lower abdomen, Desire to go to the toilet. But i could not do urinate. Urine came out in small drops.) I went to the doctor, but he said "probably it is not cystitis". A couple of days the problem went by itself, and I did not go to the doctor again. It was an attack that went by itself.After about a 6 months i realized that i feel less of pleasure, when i cuming. My orgasmic sensitivity began to decline with time.
Then i felt weak pain when i urinate, then.
Now i am 17.
I feel constant burning pain when i pee ( only when my urine are yellow. When it clear i do not feel nothing, just desire to go to toilet.) My erection are weak, i can't get strong erection, even when i really horny)

But the fact that I really care about it's lack of pleasure, orgasmic sensitives. I feel depressed about this.
I Done some analyzes, but doctors do not know what wrong with me.)
I done: Blood test, Analysis of urine, Prostate ultrasound, Ultrasonography of the bladder and kidneys. Also i done Prostate secretion analysis on viruses. All of this probes are clear! All these tests showed no disease.!!


I really care about my men's health. This disease becomes stronger and painful every day.
Might it be some non-virus disease? Please, help me~!