I started on 50mg just over a month ago for anxiety / panic attac...

I started on 50mg just over a month ago for anxiety / panic attacks. I don't feel so anxious any more and haven't had a panic attack since I started :D. At first I kept yawning all the time but I'd expected this and it went away. But recently (for a couple of weeks now) I've had persistant jaw tension. That's the only side effect I notice now. It gets better and worse but it's really bothersome. Does anyone know if that will go away or if I should try lowering my dose?