If you took anti-fungals for 2 weeks and you had neither a die-off reaction or it didn't help you, that's your first clue that Candida wasn't your problem.
You're obviously still not feeling well but I'm sure if you keep an open mind and continue looking you'll find something that will help.
Removing your Amalgam fillings (if done properly, was it?) certainly can't hurt. Mercury sits in the tissues for years, silently doing damage, so at least you'll have less exposure for the future. For myself I've experienced a great healing since it was done, but ymmv.