Fasting While Sick

So I've been fasting for the most part the last three days. I haven't really felt hungry and for the most part, I've been reading that the stomach aches and "pangs" that we feel are NOT true hunger. When I overeat the night before, I wake up and feel hungry but really, my stomach is simply grumpy from having all this stuff put in there that it didn't finish eliminating. I tend to wait now until 9am or 10am to even think about food and even then, it's probably a smoothie or fresh juice.