I agree with SD. Humaworm is one of the weakest parasite formulas that I have ever tried and I have tried a few. It might have 400mg per day of Wormwood in a daily dose. Hulda Clark recommended about 7 caps per day of 300gms each for a daily total of 2100gms.
I have been using Wormwood consistently for the past 3 years. When cleansing or for maintenance I use about 4500 mg per day. This is about 3 caps (00 size-about 1500mg) with each meal. This is roughly 3/4 tspn of loose herb. I have never had any type of permanent damage from Wormwood . Wormwood is one of the best herbs in the world for deworming.
What it does do is kill parasites which spew their toxins and eggs all through the body causing some brutal die-off symptoms. It really depends how heavily parasitized you are. I really think your problems are the result of die off or an ongoing parasite infestation.