The following information may help to address your question:
You may wish to discuss your concerns with a genetics professional. Genetics clinics are a source of information for individuals and families regarding genetic conditions, treatment, inheritance, and genetic risks to other family members. More information about genetic consultations is available from Genetics Home Reference at http://ghr.nlm.nih.gov/handbook/consult. To find a genetics clinic, we recommend that you contact your primary healthcare provider for a referral.
The following online resources can help you find a genetics professional in your community:
The National Institute of Mental Health (NIMH) has a clinical trial entitled "Genetics of Obsessive-Compulsive Disorder" which may be of interst to you. Further information about this study can be accessed through ClinicalTrials.gov, a database developed by the U.S. National Institutes of Health, through the National Library of Medicine to provide patients, family members, and members of the public with current information on clinical research studies.