For thos with kratom experience..?

Has anyone got sick from bali for more than one day? I was wondering if the kratom could be tainted. The night it was drunken everything was fine, but when It was drunk the morning after, sickness started to set in and still continues one day after. I thought boiling kratom got rid of any possible bacteria (it is after all from a third world country), but I guess not? please help.