Uh yeah I don't take Kratom lightly. It's under the radar in the western world, but in Thailand where it's part of the culture, the penalty for possession is death.
There's a whole bunch of powerful alkaloids in that leaf.. 7-hydroxymitragynine seems to have a lot of opiate activity.. I've seen the isolated chemical on sale as some kind of herbal tincture,,& it was always sold out.. like one minute the guy has a huge quantity available then bam! it was sold out in a day.
So yeah man take it easy, maybe have a break.
I view Kratom as an low level/intermediate opiate i'd treat it with the same caution as the likes of codeine, tramadol etc.