You should read the olive leaf book $5.95, it explains the parasites in the brain stem and the olive leaf tea cure. I would also concentrate on getting the metals out. The fasting with orange juice done correctly is always my prefered route of cure-all.
IF all else fails, try 1 drop per oregano in an empty capsule 1 per day adding one per day until you reach 8 per day, stay on this until satisfied. Also, the desert parsley 3 drops per day till the bottle is empty (about 1/2 year). If these 2 things does not cure the problem, then it is not viral/bacteria it is metals aka poisoning. You have to stop the source of your poison aka the house normaly or work place.