Hi, I'm male. Sometimes when I urinate, there is this white, cloudy look that appears for a second or two whilst I just pee naturally and then goes back to the natural clear/yellow/etc colour it was before. And also at times, it burns when I pee. This causes me to stay on the toilet for over an hour because my urine doesn't flow, so I have to wait till it naturally flows but hurts. However, when that does happen, I never feel that I am completely empty in my bladder which is what causes the long stay round the toilet. And when the flow comes naturally, it's a tiny bit, and gives a shock/burn when I feel through my urethra. This can't be an STD as I have not had sex. So, what would explain it clearer?