Can Kybella treatment leads to big anxiety (I mean, not the experience itself, but some chemical components in it)?

No, it is unlikely that Kybella is causing your anxiety. If it persists, I recommend following up with your Doctor. Keep in mind, Kybella is good for dissolving fat under the chin, but a combination approach is needed to get the most improvement with non-invasive options. I recommend a combination approach with thermage, ultherapy, exilis. VASER liposuction in combination with ThermiRF is the best alternative for contouring the chin. I recommend getting a formal evaluation with a cosmetic dermatologist. Best, Dr. Emer

I have never heard of Kybella causing an anxiety attack. I think that these two are unrelated. I would suggest that you make an appointment with your doctor for a full workup. In the meantime, meditation and hypnosis are both things that you can do at home to help manage your anxiety. 

No, your anxiety is not from the Kybella no more than what you had for lunch that day.  
The ingredients are those your body makes itself or other inactive ingredients used in multiple products for years.

Thankyou for your question.
There is no evidence that Kybella leads to anxiety. I really think you should go and talk to you general practitioner as this affecting your everyday living. You need to go have this looked into.

Thank you for your question. To my knowledge, no, Kybella doesn't have any chemicals that promote anxiety. However, depending on when your treatment was performed, if you are still relatively swollen - which some people can become - then you may just simply feel more anxious. Also, some people are very sensitive about their neck area, and it may feel as though your neck is almost compressed - which can lead to anxiety. If you have significant concerns, I would contact your injector and ask to be evaluated again in person just to make sure everything is resolving appropriately. Best of luck!