Well this is several years later, but maybe my response will be worthwhile... I have been trying to figure out what is going awry when medicating, daily vyvanse =never noticed even the slightest unwanted side effect... kratom = a bit of a wild horse that can't be tamed lol... turmeric = pain relief, calms nerves and reduces inflammation as well as performs as a potentiator for kratom, not sure if this is my trouble maker or if it is the kratom... essentially I hadn't noticed negative effects from the kratom up until most recently, by now I have taken the above 3 on a daily basis. Vyvanse is the only med I've kept at the same dose, kratom I've consistently found that staying under 7 grams and I seem to love it, taking any amount with turmeric and although I feel great and can tell the kratom is 'boosted' .. I also feel very unwell at the same time, like it is so difficult to explain without it sounding like a heart attack or something because I just start breaking into cold sweats, intermittently, somewhat dizzy but not really, maybe a little faint but not weak or disabled, the worst is sporadically vomiting... maybe half the total vomit events were accompanied by nausea, however, half the other times I vomit without warning which is just stressing me out. So I began researching and have only found outdated posts like this... I hope my post stirs some conversations again... especially in recent years with such a push to ban kratom, I truly believe we need more advocates and wisdom on these topics...