Why is my left testicle hurting all of a sudden?

Arnold Weebu Asked: Why is my left testicle hurting all of a sudden?

My left testicle has been hurting all of a sudden every now and again. Probably started about 5 to 6 days ago. The pain is not like being kicked in the nuts, it is not that bad. Its more of an annoyance, andI will grab my balls and shake them to try to make the pain go away. I want to mention I slept with someone about a month ago with no protection, and I am pretty sure I have a yeast infection, I dont feel like its chlamydia, some of the other common ones cuz I'm not showing those symptoms. I dont know if there is a connection with that and my testicle pain. I've checked my left nut to see if I had torsion, the spermadic duct might be a bit more thick then the one on the right but never inspected my testicles enough in the passed to really notice a difference, the only thing that I kind of noticed ( it might have always been like this) is that my left testicle which is the one in pain, is not completely vertical like the one on the right. Does anyone have any ideas? Anything is helpful.

Thank You