Alright so I started to feel discomfort in my testicles usually when I'm sitting down. The pain is mild. But now I have pain in my lower back. Almost like a mussle strain. I didn't have any injuries but I have had sexual contact a few days ago. After doing some research I thought it might be Epididymitis. But I have no abnormal urges to urinate and it also doesn't hurt to urinate. Please let me know what could be wrong so I could take the proper steps to fixing this.