Syndrome? I've never heard it called that before.
It's only bad if you don't do it properly. Like wiring up a domestic electrical circuit you have to learn a bit first or you'll be in for surprises. But, yes, I've heard that Kundalini can be roused and sent up spontaneously and maybe this happened. Was it an ND experience?
It does sound like a bad experience and no doubt the chakra-workers will tell you about imbalances and blocked chakras and if She had to fight her way through that then by the time She hit your crown it was probably overwhelming.
But it's what happened afterwards that sounds as if it threw you. A sad reflection on modern literature on the subject - it never tells what to do if you think something went wrong. You may well have received an empowerment but hadn't the capacity to deal with it. Unfortunately, most Christians who would try to push their agenda as an answer really haven't a clue.
If you feel 100% ok now then it probably doesn't matter in itself. There will be residual effects from which some benefit may be drawn. Are you doing any other spiritual work?
Wish you the best.