I realize that many similar questions have been asked... but I've come across non with this specific detail. I am 18 years old, and for the past couple of years I have been getting odd aches in my upper legs, abdomen, and testicles (particularly the left one). It is usually the worst when I stand, but is always very uncomfortable and annoying. The strangest part about it is this: it only happens after I've been sexually stimulated. If I engage in sexual activities for long periods of time (throughout the course of a day), but never actually get to the point of ejaculation, then my testicles begin to ache. It's especially annoying because it is difficult to just play around and tease without going all the way, for fear that I may get this ache (and if my partner and I do NOT finish, then I DO get the ache), and sometimes I just want to cuddle after a little fun. It varies in intensity depending on how long and how often I'm stimulated, and I have no problem with becoming erect, ejaculating, or anything aesthetically abnormal. I am curious as to what this might be caused by, seeing how I've never heard anyone else talk about it, I figure it's not normal. Anyway, I would love any possible insight.