very interesting topic...i avoided caffeine like crazy for many years because of chronic insomnia. after having children i do drink coffee now and am also on luvox. i have two cups in the morning and sometimes more caffeine in the form of another cup of coffee, tea or caffeinated soda in the afternoon. i have never really considered whether it increases the anxiety or causes stomach upset but i drink it more out of habit now than anything, like it doesn't feel like the day is really started without it.
i can say though i am always tired, always fatigued. i also take medicine for hypothyroid but the last time it was checked, recently, the thyroid levels were okay. but i feel like even after two cups of coffee in the morning i am still tired. and the rare times i don't drink it, i don't feel any more awake or sleepy really...