I don't think the dose is too high as long as I can tolerate the symptoms. My mood is often better during chelation, and sometimes I feel like I have more energy, however I get muscle ache during chelation, and often don't feel like moving at all.
I am afraid that if I go too slowly with chelation, it might take very long for me to see progress. I guess I need to chelate with the highest doses I can tolerate.