I'm gonna go ahead and blame the stomach problems on the CEE. I personally don't think CEE is fit for consumption. I would also suggest cutting the dosage of AAKG and taurine in half. Try adding some betaine which will help with digestion and synergize with the taurine.
As for your grape scented ****, well, that's just what happens sometimes with artificial flavors and colors. I once ate an entire box of Trix and my **** came out smelling like rancid fruit and colored like the rainbow. Those powerful coloring and flavoring agents don't get metabolized in the same way the real stuff does and that is exactly why I don't trust them.
Oh, and things like GHV have been known to make people feel kind of queezy. But first get rid of the CEE and just use cre mono and reduce the dosage of the AAKG and taurine.