My weight dropped these days without much exercises.

Several things I have been doing together but I don't know which one worked or, just all of them worked: diet, psyllium seeds husk supplement, a lot of water.
Here is my diet menu:
breakfast: oatmeal (actually experts put it as forbbiden food), nuts, a piece of whole wheat bread, soy milk, one egg;
lunch: fish, vegs (salad), brown rice;
dinner: almost the same as lunch.

Oh, just realized that I haven't eaten any fruits for several days! By experts' opinion, fruits have lots of sugar, so they belong to forbbiden foods for CFS sufferers.