Candida, biofilm, parasites and worms seem to go hand in hand. Over time I feel it may lead to a buildup of toxins and blocks up the bodies elimination and healing pathways.
Brain fog may be symptoms of toxins and heavy metal build up affecting the sensitive brain.
A series of Bowel Cleanse may be a good place to start allowing trapped junk and toxins to leave the body. Cleaning and supporting organs, liver, kidney, pancreas, blood etc.