Hernias are felt in he abdominal and groin area, not in the testicles, but other than that, nobody can really diagnose you without examining you.
You can feel an inguinal hernia in the scrotum and testicles, but I'm not sure bubbling is a symptom of that -
You should absolutely get this checked out. The only way to get it diagnosed is by a doctor examining you, as Pax says. Let us know what happens.