It is more likely that someone with ADHD will have a co-existing or comorbid condition than not. Many will have 2 or more comorbidities. Disorders may manifest themselves at different ages and stages of life, so it's good to be aware and watchful.
What You Should Know About Anxiety Disorders (Infographic). I have generalized anxiety disorder, panic disorder, social anxiety disorder, specific phobias, and occasional post-traumatic stress disorder if something triggers it.
But you treat me differently now. End the stigma! Increase awareness and education of mental health disorders. People should not be ashamed and fear being treated differently due to having an illness that isn't their fault.