What Causes Nocturnal Erection With Difficulty In Urination?

age 22

following r the things that i did in past.
i) I did masterbate in the age of 12-15.almost every night.i did it as i was not aware of this thing. ii)I saw the adult movie in the age of 15-17. iii) now i have left every thing but have the prob here are...
I have problem related with urine and have the following symptoms:

1. I feel night fall 4-5 times in a month since 3 years and sometimes a gum like liquid comes through after urination. My penis becomes erected during sleeping for every night almost .When it goes to extreme position I feel night fall otherwise I see gum like liquid coming from penis when i urinate after sleeping. This case i.e. either night fall or seeing gum like liquid happens almost for every night.

2. i feel seminal discharge as i see any pron or even think about it.

3. i think my sexual desire has increased as my penis erects very
easily .whenever i travel by bus it erects . It also erects during
sleeping almost every night and sometimes it remains erected till
early morning

4. Whenever I talk to girl a gum like liquid comes through penis.

5. I HAVE BECOME VERY WEAK PHYSICALLY AS WELL AS MENTALLY

6. Even I talk abt sexy thing , a gum like liquid comes from my penis.

As i am very sensitive person, I feel very shy.
plz help me and suggest some medicine. i have left to see any Pron sites.

I took tab speman for 5 months but i did not get full recovery .

Thanks & regards,
Amit