Go through these in order and stop at the first one that applies. If you are reading this for someone else, answer for them.
Emergency help is appropriate for chest pain, trouble breathing, fainting, confusion, severe or rapidly worsening abdominal pain, vomiting blood, or signs of immediate medical danger.
Anyone who may act on thoughts of suicide or self-harm should contact local emergency services or a crisis service immediately and stay with a trusted person when possible.
Seek prompt medical advice if eating-related symptoms are causing repeated dizziness, worsening weakness, persistent abdominal symptoms, or difficulty carrying out daily activities.
Routine follow-up helps the patient and care team review binge frequency, loss of control, regular eating, mood, sleep, medication effects, and progress toward personal goals.
Follow-up may involve a primary care clinician, therapist, psychiatrist, and dietitian.
The article also says
A treatment review is appropriate if symptoms are not improving, binge episodes are becoming more frequent, side effects occur, or the plan feels overly focused on weight rather than eating-disorder recovery.
New vomiting, laxative misuse, severe restriction, or excessive exercise should also be reported because these behaviors may change the diagnosis and medical risks.
Every sign above is quoted from the sofidex article on Binge eating disorder. If you are not sure, err upward — it is always reasonable to be checked.