No, you are not alone.
I suspect that vegetarianism/veganism has a profound effect on cognition. I cringe whenever I read about parents raising their kids on those restrictive diets.
If you are eating one of those restrictive diets and popping handfuls of "supplements" because it makes you healthy--you need to seriously reconsider your diet. People who eat properly do not need supplements, and no one needs herbal supplements.
Amen.
My ponderings were more along the lines of world population/birth and population control.