Binge-Eating Disorder is a mental disorder diagnosis listed in the DSM-5 (Diagnostic and Statistical Manual of Mental Disorders - 5th edition). However, binge eating may also be a symptom of a number of other problems related to mood, anxiety, job, social life, school, or a side effect of some medications and recreational drugs, among other things. There are many places you could turn to for help with evaluating and treating this problem. However, given your rapid weight gain in a relatively short period of time, my suggestion for your first step would be to visit your GP, family physician, or primary care doctor for a physical examination to make sure that this behavior and weight gain is not due to a medication side effect or other medical problem, and that there is no serious harm or risk to your health as a result. If there is a medical cause, your doctor can refer you to appropriate care to correct the problem. Otherwise, once your doctor declares your physical health to be ok and rules out any medically correctable causes, you can ask him or her for recommendations for next steps in your local community. Depending on the severity of your problem, options for further evaluation and treatment might include residential or outpatient treatment programs, support groups, consultation with a dietician, psychiatrist, and/or therapist who specialize in binge eating and possible psychological causes. This is not a complete answer to your question, and there are many other possible causes and treatments to consider as well. A consultation with a licensed and trained professional in your local community who is an expert on eating disorders and associated problems would be essential.