29M Married for 3 Years. I have been diagnosed with kidney stones in the past. Very active sexually with daily activity. I have been facing burning issue while releasing semen / or after releasing sperm and urination. The burning increases when I stop releasing semen to increase sex time. Even when I ejaculate the semen comes out in lower volume and slowly. Not like squirt and high volume which I used to have 1-2 years back. If I release semen 2nd time in 2-3 hours gap i feel during erection and hardly any semen comes out. Ultrasound always comes out normal. Is it due to daily sex ? Or some serious condition?