Stress incontinence. ok to do zumba and running. ?

Might get wet, pads: Depends on how bad your symptoms are, and how full your bladder is. Empty your bladder before running or zumba, practice your kegel exercises. See your gyn or urologist (or gynourologist or urogynecologist) if ongoing or bothersome. Can always try panty liners or pads for protection.

Yes prepare for leak: Yes. Begin with kegel exercises to strengthen muscles that close urethra. Some women leak because of poorly supported urethra after having babies, which can be fixed with a urethral sling as an outpatient 10 minute procedure with minimal downtime. While it's embarrassing don't acquiesce to suffer in silence, ask for help.