I am currently being treated for CFS, and have been told by my doc to add l-lysine. I have high levels of EBV, and lyme. Currently I am on doxy for the lyme, and a few other basic supps (probiotics, multi, b complex, C, D, fish oil, and milk thistle). My doc is also considering Valtrex for the EBV. My question is, has anyone had a die off reaction from taking l-lysine to help fight off ebv or other herpes viruses? I am already having a considerable herx from the antibiotics, and want to know what to expect. Thanks.