i have gone through your query and saw the reference picture you have attached.
The picture shows the dissected spermatic cord
with it contents on right side of the picture.
Without examination, it is difficult to identify the varicocele
But if you have varicocele, it may feel like " Bag of Worms" on examination.
If it is very big, it may cause dragging pain.
The main problem in varicocele is infertility
Due to engorged blood vessels and blood stasis
, the temperature in veins in varicocele is high.
As the testis is nearby organ and connected, this high temperature affect the sperm production.
Thus better consult your primary care
physician and rule out the varicocele.
If you have varicocele, it is best to get operated.
Hope this helps.
Please write back for further queries.
wishing you good helath.