Asked for male, 18years old from Kapurthala
Penis mein kuch problem nahi hai, its common. During erection the penis gets large and when not erected it is small and thin. And it can becomes very small even that you may feel yaar kahaa gaayab ho gaya.
Its the beautiful muscle mechanism of the penis that helps in this.
And about urine, it depend on the inner hole or urethra and its opening. Hole correct place mein hai toh chinta ki baat nahi hai. Foreskin peeche kar ke pass kiya karo.