I am 20 years old. Two to three months ago, I started to have pain on my left testicle whenever I go out as I am usually at home. I speculate that I have varicocele as upon doing a self-examination, I found that the veins were bigger than the other testicle. There were no lumps found, but the left testicle feels bigger than the right one.
I would say it is around 5 mm bigger in diameter. I do not have urinary problems like burning sensation. Although when it pains, my left lower abdomen and the pelvic area also hurt sometimes which could be due to lack of exercise as I am on my computer most of the time.
The pain or ache on my left testicle usually appears when I am wearing tight pants. But I did not have this problem three months ago. I consulted a general practitioner, and he did a physical check and said it was likely due to congestion of the blood at the testicle. Do you think it could be an infection like epididymitis? I only had sex once in my life with my partner, but I do not have any other symptoms of STD. And do you think that there is something serious? Or is it probably due to congestion or tight pants?