So what is meant by 'super sensitive'? It makes you break out in hives? You get diarrhea? Your face breaks out in purple pimples? Kinda hard to help with such a limited descriptive symptom.
The only herb, after daily use for 2 years was hawthorn--it made me get heart palpitations. I just took it for too long, when my body stopped needing it, I suspect. Any hawthorn in it? I doubt a couple days or weeks would be long enough though.