Well vaccine damage is a possibility, but obviously things go back further than that with you because you say you've been chelating for 5 years.

I'm afraid I haven't been coming to this forum very often and am not familiar with your details. Could you tell us what your past health history is and why you decided to start chelating? Also, were you following Andy's regime during that time? Have you tried taking large doses of vitamin C (several grams a day), or is there anything else that seems to have helped over the years?

My thinking is that your immune system is compromised but that's a guess, and that's usually not an end in itself because something has to cause that to happen. Maybe others will have some ideas once we know a bit more about what's been happening with you