Tingling on back of testicles

I have developed a fairly consistent tingling sensation on the back of my testicles . I mentioned this at my one and only urologist exam, and he of course blew it off. I searched the internet for this symptom and the best I could come up with was neuritis. The web site stated “This Neuritis disease can also result from a variety of nutritional deficiencies and metabolic isturbances such as faulty calcium metabolism, deficiencies of several B vitamins like B12, B6, B1, pantothenic acid and B2 and general toxaemia.”

I strongly suspect this is related to my fin problems. Has anyone else had this tingling? I suspect some type of nerve damage or circulation problems.