You are welcome!
Have you experienced some trauma or infection in that region recently?
What kind of cysts you were having previously?
I guess you have developed spermatic cyst (spermatocele, epididymal cysts).
This is a common type of painless, benign cyst raising adjacent to the epididymis (part where sperm is collected) near the top of the testicle.
This cyst usually don't need to be treated unless the person has symptoms (increasing in size and becoming painful).
Anyway, it will be nice to visit a doctor and get this checked with an ultrasound.