Sorry that you are going through what you are,but you need to do research and second guess before you take advice from anyone.
Bottom line i told you it may not br=e a good idea to use dmsa or ala when you still have amalgams in,and there are many reasons why i said thatas it stirs it up and can actually pull from fillings and distribute it over your body making you worse and could do more damage.
Ala crosses the blood brain barrier,meaning it can take mercry from the blood and distribute it into your brain,which is why they recommend clearing body mercry with dmsa before using ala.
Another reason is dmsa is a drug wich gets flushed out via the liver,which is already burdened by toxins so a high burden of mercury,plus dmsa equals overstressed liver.
Please be careful and get second and third opinions before you do anything,and also pay attention to what you body is telling you,because what works for one person may not necesseraly work for the next.