You can order the chelating agents online- but it sounds like you are a rural farm girl somewhere and may not have extreme exposure. Do you or have you had silver fillings? If you do, you should remove them first before chelating. Definitely do a lot of research about chelation because it is potentially dangerous redistributing metals back in your brain and nervous system. Look up the chelation forums here and also google andy cutler and his protocol.
Keep Liver Flushing and experiment with raw garlic and ginger to help kill some of the colonies. Also, if and when you stop having the loose stools look into enema therapy to help remove the dead colonies.