Are You Feeling Down and Depressed Since Beginning The HCG Diet? Feelings of sadness or depression while your on the HCG Diet is totally normal for some people. So if you do have one or maybe two days on the HCG Diet where you feel a little bit sad or depressed, don't worry, this feeling does usually go away. However, although it is completely normal for a person to experience a day here and there where they feel overly sad, it doesn't happen to everybody. I assume that the reason these feelings happen for some and not others is because you are introducing a low dose of HCG hormone into your body which it is not used to. And when your body starts dealing with things that it's not used to, it reacts differently than normal. But, because we are all so different and have different types of lifestyles, it doesn't seem to effect everyone the same way. (That is my own theory anyway) For the most part you are going to feel better than you have felt in a long ti...