I have noticed after ejaculation, I experience discomfort in bulbocavernosus area (on the left side). Basically, it feels like a muscle pull where the scrotum meet the torso and it occurs after I have ejaculated. So its in between the anus and scrotum. I am in my early 20s, so I'm thinking its not anything to do with the prostate, but concerned it may be prostatitius. Do you have suggestions as to what you may be?