Hi,today when i am in toilet suddenly there white thick discharge.i went to see doctor and check urine test.he said there is no white blood cells any infection found but there some protein found.i don't get it.i have kidney problem?or my overthinking

Urethral discharge: You don't say your sex, but I think male, right? And you had penile discharge while moving your bowels? That happens from time to time in many men and usually is not abnormal, i.e. no infection or other important problem. Straining at stool and feces passing over your prostate gland and seminal vesicles can squeeze out semen or prostate fluid. This has nothing to do with kidney problems.