I tested positive for H pylori antibodies. I did not wait for further testing and started taking silver 2 weeks ago. For the first time in my life I herxed and now I know how awful it can be. I experienced severe chills,fever,diarrhea,sweating, headache,stiff neck, cold sores, et al. Today my muscle pain is almost gone and I am sure colloidal silver has done something good to my body. I will continue taking it for 2 more weeks and then stop. I hope the effect will hold.