That actually does sound a lot like a possible anxiety issue. I have to say though your friend is a bit misinformed, yes everyone feels anxious sometimes but not everyone has an anxiety disorder that interferes with their daily life...it does sound like you could though.

What you describe is by no means normal anxiety that everyone experiences...I can't tell you what to do but an anxiety medication could be helpful but its really up to you it is nice to have some relief though.