I cannot handle the SFS supplements either. To me it is along the same line as a vitamin/mineral in a pill...removed from it's source. Maybe more concentrated. It is not as nature intended. On 1/4 teaspoon once a day, I was gassier than ever, and I gave it a long time to subside. Too much pain for me.
I don't need peppermint, since I do not suffer from cramps, but I could never do it anyway. With acid reflux, it would just kill me.
All products do not work for all people. Don't listen to me, don't listen to anyone else, just yourself. You know best how your body responds, so honor your experience.