Hello
I understand your concern regarding weight loss. Seeing that you're a young male, 86 kg is too much of a weight for you otherwise also and it's actually good news that you were able to reduce it. But if it was unintentional and too rapid, then it definitely is a cause of concern and needs detailed evaluation. Anxiety, depression, and alcohol use can all lead to unintentional weight loss in addition to some medical causes. What exactly caused your weight loss can't be said without evaluation.
Next Steps
consult
Health Tips
maintain your body mass index in healthy range by taking balanced diet, exercising etc