It's my first day on Cymbalta and I feel so wierd. I can't stop yawning, but I am jittery. I'm a little nauseated, but mostly my stomach burns and is in knots. I can't stop grinding my teeth. And for some reason I can't explain, I find myself rubbing my face with my hands - like a nervous habit. I've read other posts, and I have hopes these symptoms will go away soon. For those of you with mild/moderate side effects upon starting Cymbalta, how long did they last? I'm taking this for GAD, I don't need to feel MORE nervous!!!