Social Anxiety or just Shyness?

For the last few months Ive been convinced i have Social Anxiety but most people I talk to say I don't fit the "description." I can hold eye contact with anyone (sometimes making other people look away), I can eat and drink in public with no problem and I don't really fear social situations just get nervous. But at the same time I'm also highly Self-consciousness, feel like I'm always been judged negatively or will be judged and petrified of public speaking? Does this sound like SA or shyness, there seems to be a fine line between them and I can't decide which one it is.