Hello San,
I'm sorry to hear of your troubles. I think a discussion with a doctor would be best for you. It's the only way to really know what's going on and if something is physically wrong that could be causing your incontinence. Also, here's some information for you that might help:
Types of Incontinence
http://www.healthcentral.com/incontinence/types.html
Frequent or Urgent Urination
http://www.healthcentral.com/incontinence/introduction-10949-108.html?ic=4004
Best of luck to you,
MG