If you have leaky gut AND intestinal candida then you have systemic candida as the candida has "drilled" holes in your intestines and "leaked" out into surrounding tissues. Whether or not it is in your blood is another question. Some people have success in finding it in the blood via blood draw and electron-scanning microscope. If this is the case, you will need an antifungal that works systemically. Not all of them do, especially the natural ones.