After feeling pretty good the past few months, I've had a return of low-grade PCS symptoms. I suspected caffeine at first and cut way back on that, which did help. However, the symptoms are still there a little bit. My next suspect is artificial sweeteners. They have crept into my diet w/o much problem until now.

Artificial sweeteners cover a lot of different products. I know there is evidence some artificial sweeteners are not great for neuro-health. My question to you all, is what about the naturally derived non-sugar/agave ones? Specifically Stevia and erythritol? Anyone have any experience with symptoms on these?