Jim - that's really unfortunate. It's always been known that taking single amino acids...especially in high doses...is not a good idea because they work as a team (in synergy). Unfortunately, those who Arginine zealots typically fail to mention that if one does take Arginine, then Lysine should be added as well. I believe some years back when we discussed Arginine here at length, this fact was mentioned along with several afibbers reporting they either had shingles or a recurrent bout of shingles as a result of high-dose Arginine.
Jackie