Abstract
This study investigated the recovery process for individuals engaged in treatment for substance use disorders (SUDs) who had co-occurring anxiety and depression. The participants were eight individuals engaged in treatment. The results of a Grounded Theory design and methods revealed the core category and substantive theory, Stumbling toward Vulnerability. Four phases in which the participants progressed in a linear way emerged. The study results have implications for the role of the advance practice psychiatric-mental health nurse in the early assessment of mental illness for clients with SUDs by providing integrated treatment for these individuals, and focusing on health and wellness as a recovery outcome. Based on the findings, hypotheses for further research are recommended.