Can a lawyer represent me in a dui case in massachusetts without me being present due to anxiety issues?

On occasion, for overwhlemingly compelling reasons (usually having to do with the defendant living in another state), the court can permit a lawyer to appear without the defendant (which is called "waiving the defendant's appearance") for non-crucial stages of the case.  Anxiety, no matter how severe, will not convince a court to waive your appearance, and even in cases where the court does decide to waive the defendants appearance, the defendant always has to be present at the first and the last hearing.