It may seem strange that someone is asking about your Amalgams but this is because mercury messes up so many parts of the body. Candida is a common symptom in the heavy metal chelation groups.
"Silver" Amalgam fillings contain about 50% mercury. Some of us don't detox as well as average people. I'm not saying it is your problem but if normal things are not working and you have the typically long list of Hg symptoms--poor stress management, foggy brain, adrenal fatigue, sometimes low thyroid and muscle problems, etc--it might be worthwhile considering it. I can provide links to more information on these if you like.