My brother in law has been to 2 doctors, each with different opinion. One says get an ultrasound, thinks its infection. The other one says its a pinched nerve in his back. His issue is a very very painful testicle. He said one spot he cant even touch. I am a nurse, which is why he discussed it with me. I suggested getting the ultrasound and seeing the urologist. What do you suggest? He has no edema or redness, just extreme pain. No urinary issue, no fever.