Soreness – normal?

Last night I decided to do some extended play and leave my Helix Syn in while I slept. It still felt pretty good when I woke up, so I relubed after my shower and went to work with it in. My left testicle is kind of sore now. Is that abnormal or is that just blueballs?

First time leaving it in this long, just want to make sure I’m not doing something wrong.

Source: https://www.reddit.com/r/aneros/comments/8bhniw/soreness_normal/