Of course it would have been better to get an earlier appointment, but you didn't know that you would continue to feel so shitty

It is still rather early in the day. Could you CALL her and ask her over the phone if you can discontinue the Depakote because you are feeling so rotten? You still have to get through the weekend, and then wait for 3 days otherwise.

I know you had issues with your stomach before the Depakote. Do you think it's making it worse?
How does your stomach feel? Is it a cramping feeling? Sharp pain? Maybe we can make suggestions that will help if we have a better idea of what's going on.
How is your appetite?

I hope you start feeling better. You sound miserable (((HUGS)))