Testicular Discomfort - No pain or discomfort to the touch - dr diagnosed uti?

Hello Everyone. If anyone can shed some light on my issue here it would be greatly appreciated. About 1 1/2 months ago i noticed that i was having some testicular discomfort at certain times on and off usually while sitting. This would come for about 30 minutes then subside and i wouldnt notice it for a couple days. About two weeks ago the discomfort came back and it was a bit more prominent and consistent so i went to see my primary care doctor. The pain can be described as more of an ache and it occurred in my perineum area between the rectum and colon. On a scale of 1-10 it was a 1 or 2. My doctor took a urinalysis and said it was clear. He examined me for a hernia (turn your head and cough) and examined my testicals and said everything seemed fine. He chalked it up to muscle strain because i have been working out 6 days a week in the gym for the last 7 or 8 weeks. He said come back if there was a change in bowel movement or fever or lower back pain. Last wednesday i had lower back pain and diahrea so i then went back to my doctor - i had also been out of the gym all week trying to see if the pain was muscle strain and would subside. He tookl a urinalysis and found bacteria in my urine and diagnosed me with a uti. At that time the base of my hurt under the skin in my perineum area like an ache and when i would pee it would feel like someone stretched my . I have been on antibiotics now for 5 days (cipro 500 mg 2 x daily). He perscribed it for 10 days. The perineum paion went away but my testicals were in discomfort today. They almost feel like someone is squeeing the left one or that they are tangled. They do noty hurt when i touch them or feel them. There are no lumps present. No discharge. No blood in urine. No burning when i pee. Everything seems normal. Did i pinch a nerve or could this be something greater? It is really affecting my quality of life as i am an extremely anxious person whom worries about anything health related. I take paxil/lorazepam for anxiety/panic disorder. Please help. Thanks