Go ahead and ask in the kratom thread, see the reaponses you'll get. The fact that you "nodded for 10 hours" on a drug that has a duration of half that or less makes me suspicious. I know half-life doesn't equal duration but kratom's got a half life of like 3.5 hours. The vast majority of kratom users would argue they aren't even capable of nodding on kratom, and any opioid user with any significant tolerance will typically blow off kratom as worthless, ymmv...