I haven’t been eating for the last few days. I don’t do it on purpose or anything, but I just don’t get hungry. I feel fine, and probably have had more energy in the last few days than I have in a while. I eat a small lunch, but I haven’t eaten breakfast or dinner in almost 4 days. I haven’t lost any weight, but I know it’s a problem not to eat. If I was hungry and had lost a lot of weight, I would know it’s a problem, but so far I haven’t seen any negative changes in my body or my mind. How bad of a problem is this?