Have you seen a doctor about your condition yet? I guess you could call some of your symptoms anxiety symptoms, but it sounds to me like you might just have a little bit more wrong with you than that.
I suggest that you schedule a CT to check for abnormalities in your brain. Not to freak you out or anything......but tumors or even a small amount of brain hemorrhage can cause difficulties in speech, vision and mobility control. I would go more with the theory of that than an anxiety condition, so please do get that checked out.
If your scan and tests come out normal, then you can talk to your doctor about a possible anxiety problem.