My left testicle has always been smaller and very sensitive to touch. It occasionally feels like lots of tubes coming from it, or like a bag if worms. And sometimes feels like its twisting. It is very sensitive to touch, but my right testicle is bigger and has no pain or problem in touching. Ive been to my gp twice but am told nothing is wrong. Can i request to see a specialist? Why is my left testicle so sensitive and small?