Shakiness is definitely a symptom from the anxiety, but with the med you are on, you should talk to your doc "immediately" or As Soon As You Can :) I hope you start feeling better :)
Edit: By the way this post was intended to reply to Georgia, it is in no way intended to frighten anyone! Too many people put off seeing their doctors when not feeling well and, I know how important it is to communicate with your docs concerning medications :) Nothing to fear but constant communication with your physician and therapists is something that should never be taken lightly by anyone :) I am not a Mental Health Professional and this is why many of us mods and members express the importance of seeking professional advice. It's even in my signature.