hey Gamma , I agree, the thought is devastating , but It may be.
the blend was 1:1 B cappi /spice , and then I threw in unmeasured small amounts of Blue lotus,Mullien and just a touch of Dagga.
I tried both ab and stb extracts, was my first attempt and long story short, I messed up on each (learning process!) my yields were about 1 gram yellow from the stb and about 1/2 gram pure white from the AB after failed attampts at evap , I had much better luck with snow globes. The pure white was smooth from testing it, the yellow burned the crap out of my lips. used all I had left of each to make my changa , about 1 gram total / approx 1/3 gram white, the rest yellow.
I should have done another RX on the yellow, for some reason I thought it would be fine on the changa after the alcohol bath. had to use 91% rubbing alchohol, couldnt find any better. (could this be an issue?)
so, perhaps my yellow may have had contaminants since it burned my lips quite a bit.
lesson 1 kiddies = no short cuts , smoke only pure spice 
Ill try my batch again after I feel Im full on healthy, I feel fine now other then my lungs are still a bit sore and I cough when I take a deep breath , so I'll wait until I feel 100%
I kinda hope it was a 24 hr bug - that would be great! but my heart tells me it wasnt, that I messed something up, and almost got it right, but I need to try extraction again.
It does sadden me though as I was REALLY liking my first steps.... sigh