dietary supplementation
"After taking L-Glutamine 500 mg 3x/day for about 1 week, I experienced a 3-hour episode of Transient Global Amnesia (confusion and loss of memory) and ended up in ER.  CT scan, labs, EEG were all negative and they could not discover anything wrong with me.  I cannot say this amnesia episode was due to L-Glutamine, but it was the only new thing in my diet/supplements.  I have been told I am very sensitive to medications and easily experience negative side effects, so maybe that's a contributing cause."