My boyfriend lives happily just on shakes for 5months now, but when I drink it, I get stomach cramps, first light diarrhea and then constipation followed by a light headache. I tried unflavoured one, banana and strawberry one.
Same, I have a pretty low tolerance for fats, strong alcohol etc and get acid reflux pretty easily. Not with our Shakes though. And your symptoms sound rathe worse than just acid reflux… Perhaps you’re allergic to one of the main ingredients? In any case, if this is your physical reaction to our products I wouldn’t recommend you consume them!