Why Do I Feel This Way?

Why do I feel so sad and lonely,
even though I've got friends?
Why do I feel that no guys like me,
even though I've got a boyfriend?
Why do I feel so ugly,
when I know that looks mean nothing?
Why do I hate myself so much,
when there's nothing to hate about me?
Why do I feel like everyone else hates me,
when I know it's only a certain few?
Why do I feel so much pain,
even when I'm happy?
Why do I feel this way?