I see you have done a lot of different protocals but I dont see any cleanses or detoxification methods! have you checked out Hulda Clark s parasite cleanse or the liver/gallbladder cleanses all these protocal clear out toxins and enhance your immune system! You should seriously read through the different protocal here at Curezone! Where did you read all that about vitamin C i have had great result with large doses and there is a guy at the Zone whose been doin megadoses for 30 yr!
UT urine therapy is also a detox immune sytem rebuilder I think there is still options for you i cant quarentee anything but these are things I would definately look into myself if i where you !