Can you overdose on Fiji Kava?

So I’ve discovered kava recently and been using it on work nights where I can’t sleep, been slowly increasing the dose to find the right dose.

I took 25grams about 3-4 times now, and I had nice subtle effects (quite a lot of powder I must admit)

Last night I took the same amount and it was overwhelming for about 5-10 minutes, my ears started ringing and I felt a bit too relaxed 😂 felt like the room was almost spinning or I was falling, but after that I was sooo relaxed and fell asleep instantly. I felt quite intoxicated without being drunk if that makes sense? I ended up calling my mum just to get my mind off it as I was falling into clouds 😂😭

But safe to say I got a really great sleep

Woke up with a slight headache, I read a lot of reddit and forum posts about kava serving sizes and apparently there is no one size fits all and it’s relatively safe? Thought I’d come here to double check since I don’t want to overdo it.

Thanks!