I had epididymytis almost two years ago. Finished program of antibiotics after 10 days, but every now and then after masturbation, I'll get pain in my epididymis after ejaculation, sometimes after having not ejaculated for some time, or after masturbating hard. Any of the previous times, it has gone away after a few days, times that I have gone to the doctor, he's told me it wasn't an infection. I am not sexually active, so I'm ruling out any other things. This ONLY tends to happen after ejaculation, and not often, maybe twice-three times per year since. Does this sound chronic, or more of a case of under/over-working myself at certain times. I found that yesterday when I ejaculated, I sort of paused in the middle, could this have sent semen back down into my epididymis? Any feedback is helpful, thank you.