I'm usually a very happy person. And then I'll just think about something sad or scary and I usually won't get over it for weeks at a time. It's a really horrible kind of sad and it makes me scared and my stomach starts to hurt. But it's not all the time. When I'm not sad, I'm usually very happy and almost excited. I really don't know if I should talk to someone because I don't know if there's an actual issue.