My Pyschiatrist prescribed Wellbutrin for me and at the same time prescribed Buspar for the Anxiety, The Wellbutrin was for depression. She knows I prefer a med that won't make me so lethargic thus the Wellbutrin however I did not tolerate the medication. I am still on the Buspar and that seems to help with no side effects.
Nervousness and restlessness are listed as possible side effects in almost all the info you read re Wellbutrin. It is prescribed for anxiety especially in people with a social phobia accompanied by Depression. As everyone reacts different to medications I would give it a chance and be sure to call your Dr. if the side effects change or become unbearable.