Candex, reaction or normal?

Hey guys,
So I've been browsing these forums for quite some time and have the same issue as many here (abdominal pain, fatigue, nail fungus, ect ect) so let me get to the point.

I've been takiing candex but everytime i take it I get tired, sweaty, mentally unbalanced with a little abdominal pain,very minor headache and need to go toilet(pretty soon after taking).
now this is nothing I can't trooper though if its helping but I'm not sure if it just doesn't agree with me?

anybody got any input?