Incontinence is certainly one of those health conditions that tends to carry more stigma and shame. But like with any medical problem, there's no reason you "should" be ashamed of having incontinence. See these SharePosts:
Stigma and Incontinence
http://www.healthcentral.com/incontinence/c/45/1653/stigma
How to Deal with the Stigma of Using Diapers to Manage Bedwetting
http://www.healthcentral.com/incontinence/c/3328/8960/deal-stigma
Diapers, Bedwetting, and Shame
http://www.healthcentral.com/incontinence/c/3328/14327/shame
Hang in there. - MG