I will post because I have some experience with this, and let me preface by saying I am not a doctor nor had any formal training of any kind. I also suffered from this for a while before I decided to go to a urologist. By the way I recommend you going to a urologist. To make a long story short I had a simple procedure done known as a hydrocelectomy (that might not be how it is spelled). I am going to tell you a trick to know if you have fluid in your testicle. Get in a very dark room, and take a flash like and hold it up to your testicle. It should glow from the light. If it looks clear a long way through you could have increased fluid in the sac which surrounds your testicle. If you seem something dark you might have a more serious problem. I still advise you to go to a urologist to have this checked out.