Hi there,
You and I have had almost the exact same loss in weight - I am also 6' tall and weighed 168 in April, now 143. I am 29.
Have you considered a Rx? Albendazole or Ivermectin? I would consider those if your liver is in decent shape. Milk Thistle is good before treatment for Herxing and helps protect the liver from permanent damage, but I'm not sure that it can prevent Die-off.
I haven't started my meds yet, but my natural treatment w diet was causing dizziness, stomach cramps, etc.
I just read an article after a long hunt that said the best treatment for Herxheimer is a Epsom Salts bath with some other ingredients. I'll see if I can find the quote.