Semen retention (Day 10), pomegranates and my wifes’ edging me joined forces yesterday and gave me a good case of “blue balls”. I haven’t had this in a while and it was painful. I had it almost all day and had to take an Aleve which seemed to help. This morning, I awoke again with an extreme erection and decided (and read) that the best way to relieve any further symptoms would be to masturbate to ejaculation. So I did very quickly and the erection subsided almost immediately. I really wanted to exceed 10 days of SR but could not stand another full day of groin pain. Other SR warriors, please take note!
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Source: https://www.aneros.com/blogs/ouch-blue-balls-day/