1) I'm very glad to hear that you're having such excellent results with the reflexology practice. I also find it very valuable, for what it's worth.

2) That kind of thing happens. One of the nastier secrets passed on in some New Age circles and some other religious circles is a method of pushing off your illnesses onto other people. I've had to deal with that in other people. Colloidal silver does seem to have remarkable healing properties, but it's also got potent magical properties -- and it sounds very much as though you broke a malefic spell, and the spell rebounded on the caster and killed him. Since that wasn't your intention, the karma's all his.