Well, lack of sleep can cause a lot of issues as well. It puts a real strain on your mind. So if you're lacking sleep it can really trigger problems. With or without sz it would cause problems, so maybe for you it may make them worse.
I have generalized anxiety disorder as well as all the rest, so I have huge anxiety all the time. I also used to get so bad I get sick to my stomach, too. I don't throw up, I get sick... uhm... the other way....

So, anxiety is a terrible thing. I also don't eat right when I get up because I get really nauseated from anxiety, too.