Bullnox Just Started Making Me Puke

Ive taken 2 cans of bullnox and it has become one of my favorite pre workouts until a few days ago I re-up’d on my supply and changed to blue raspberry instead of watermelon. Now every time I take it (only 1scoop) I violently vomit up anything I have in my stomache within 10 min of taking it… I can’t figure out why this is happening bad batch maybe?