One early POIS symptom which I had (but no longer have) was a hypersensitivity to the smell of my own semen. Whilst in POIS state, I was able to smell semen eminating from my crotch area, even without ejaculating. I would describe the smell as a repulsive sperm odour, as if it was rotten or contaminated. I remember having a very bad reaction to it, smell itself was making me feel ill/nauseated. Having smelly semen may indicate prostate infection, and I do have regular prostate pain. But while I still have prostate pain, I no longer have the smelly semen symptom and don't really know what did I do to rid myself of it.