I am a bit worried, a few drops of blood sometimes leak out of my piss-hole sometimes when I do clamping or jelqs (sometimes). What causes this? I warm up properly with hot water and stretching, but it will still happen. I even tried giving myself two weeks away from PE, but the day I started up again it happened again.. How do I avoid this? Am I being too intense in my efforts? Thankfully it has not affected anything.