I have consistent dull pain in my testicles for two months with stomach pain. Please help.

Hi doctor,

I am a 25-year-old male, and I have had a consistent dull ache in my testicles (most of the time, the left side and less of the right side) for two months from now. From time to time, it will cause stomach ache, which I know is due to the spermatic cord going up into the abdomen. I have also had infertility issues, and I am hopeful that this is related. I have been to two urologists since my symptoms started. The first urologist felt around and did a sonogram to rule out testicular cancer and check for epididymitis and varicocele. According to that doctor, the ultrasound showed bilateral epididymitis and maybe some trace varicocele (he did not think that varicocele was significant enough to cause issues). He also ruled out testicular cancer due to not feeling any lumps and not seeing any on a sonogram. He prescribed me an antibiotic for ten days to help get rid of the infection in the epididymis. My symptoms did not subside with the ten days antibiotic (which raised some questions for me). I was referred to a second urologist that is also a male infertility specialist to get the ball rolling on what is causing low sperm numbers. This urologist prescribed me a new antibiotic that I have now been taking for almost three weeks, along with 500 mg Aleve to take twice a day with the antibiotic. He also agreed that there was epididymitis but wanted to order a second sonogram to make sure nothing else is going on. My symptoms have still not gotten any better. This doctor also did a sonogram, blood work, urine testing, and two semen analyses. I will be going back for a follow-up appointment within the next week, but I am concerned that I have been taking an antibiotic for about a month, and the symptoms caused by what they claim is epididymitis have not improved. Thank you for your help.