I don't have any experience with it personally, and when that happens I check our archives. It's a strong herb and it's recommended to start very low dose on it, but I didn't read any actual details of what the herxes were like.
If it is a herx, and I say this often, generally it is very like what your symptoms are that you are taking it for already, only stronger.
I would back off the dosage, de-tox for ammonia build up more, and move up on dosage a little slower.
Moderator, Lyme Forum
Fibro diagnosed '85 Lyme (false?)positive '92,Osteoporosis, COPD, Hypertension, degen. disc disease, RMSF pos. Spring 2015, CHF, osteoarthritis. No LLMD. Used Doxy, Zithro and Flagyl since June '15, mono each time. Useless. Current treatment JK, Milk Thistle, kudzu for head fullness/pressure, avena sativa for nerves. Bragg's ACV, lemon water, Herbal de-tox tea.