Usually about once a week I will get a weird thought that I don't know what it says and it makes me feel overwhelmed and fake. It's hard to explain it, but it stresses me out! Also, often for the past five years or so I get unwanted thoughts in my head about harming others which makes me feel sad because I like the people. And I don't plan on acting on it, I'm just scared that I might! What could it be?