Has anyone suffered a headache after the kybella injection? If so how long did it last?

I have never heard of Kybella causing headaches, but since your symptoms presented themselves following your treatment, I would definitely suggest that you not have another. I hope, with time, that this will resolve itself. So sorry that you are experiencing this. 

Thank you for your question dmwhite1966.
I am sorry to hear about your situation. Kybella is the first and thus-far
only FDA-approved non-surgical injectable treatment for the double chin. We have not had patients who have suffered from headaches after a Kybella treatment. If I had a patient who did I would advise against subsequent treatments. Please consult with a doctor for specific
recommendations. Good luck!

Very doubtful KyBella has permanent migrants complications. But best to STOP any more of the KyBella injections. Especially since the migrant might have been initiated by the mutable small needle injections.

While it is unlikely this has to do with Kybella, you should report it to Allergan and discuss it with them. It sounds totally unrelated but you should call them anyway. Their number is 1-800-678-1605. "This answer has been solicited without seeing this patient and cannot be held as true medical advice, but only opinion. Seek in-person treatment with a trained medical professional for appropriate care."