Feeling better yet?
The vas does have muscular layers that contract to move sperm along. I suppose it’s possible to overwork them.
It’s unusual for someone to be this specific in their complaint. The vas deferens are contained within the scrotum and spermatic cord and aren’t visible unless isolated and brought close to the scrotal skin. Even then they are not usually distinguishable from anything else under the skin unless your scrotal skin is thin and very loose.
Are we talking about the purple tube in this image? That’s the vas deferens.