Keep it up! Able will discuss his views on the vitamin soon.
The apple cider vinegar is an antifungal like the grapefruit seed oil extract. These both will cause you to feel worse, but it will reduce the numbers of candida to allow you to get better.
The itchiness is very common and I was surprised by it as well. Just tough it out and it will slowly go away over time. Same with the muscle aches.