Does anyone else feel kind of gross in their body after the kava effects wear off?

I always hear about people using kava to relax or sleep well but I find that whenever I drink it, after the “high” so to speak has worn off, yeah I feel heavy but also I just feel gross. Like my body is just strange and I feel mildly ill. Even the heaviest of kavas will not put me to sleep cause I just feel icky. It’s not a stomach thing it’s more of just a body deregulation. But during and right after drinking it I do feel all the right things!