I know how you feel. I also was very slow to incorporate things like coconut oil, garlic, etc, and lost a bunch of weight (no appetite). My main symptom was burning sensation under the skin. Some days just a light burn, like a sunburn feeling and other days it felt like someone dumped shards of glass under my skin. Mostly affected my arms and legs, but did hit other areas as well at times. Seemed to be the worst when I was hitting it harder with the coconut oil, etc.
The first thing you need to ask yourself is if you've eaten oregano before without problems. If you have, then most likely is toxins building up. If that's the case, hang in there, I know how frustrating it is. I will say a prayer for you!