I don't know what I am anymore. I used to feel emotions like happiness and sadness or regret or even anger. But lately, I don't feel anything anymore. I just feel empty. I know what those feelings feel like but at the same time I don't. It's confusing and hard to explain but I really don't feel anything anymore. I can see people feeling those emotions I fake and mimic so it doesn't seem like I'm the odd one out. But I don't really feel anything. So after I (fake) laugh, my smile usually just disappears right after. What am I?