That's interesting. I think of low GABA goes together with chronic adrenaline.Yep, it has also been found to cause hypoglycemia without insulin change. This is why there are a few trials underway with 100mg GABA for insulin resistance. GABA is easily metabolizable to succinic acid via the GABA shunt, and both GABA and succinic acid inhibit FAO, which would explain the improved glucose tolerance.
I can really feel these shifts in myself.
But now I cannot quite remember the awful feeling of adrenaline and low-level anxiety for any extended period.