Hi, turbulence. I'm sorry you're going through this with your son. It's impossible to say whether or not your bipolar influenced his ED. But I agree with precious, all you can do is be supportive, and get him the help he needs, which you absolutely are doing. You mentioned that he's in therapy. Do you have contact with the therapist? Is he responding to therapy? You may not need to get a psychiatrist involved, but EDs are considered part of the spectrum of mental illness. While he may not need meds, it might not hurt to have his mental health evaluated. A lot of people can develop EDs due to mental illness (depression, addiction, PTSD, bipolar, Borderline, you name it).