If any organic cause has been ruled out try to just go with it. I know this sounds weird but my therapist told me when I have all these weird feelings not to fight them so hard. Accept them for what they are....anxiety. And anxiety only gets worse when you get anxious about it. So when it happens to me I try to just sit back, look at what I'm freaking over and just say to myself it is just my anxiety that is causing me to feel this way and it's nothing to be afraid of. If you can do that and concentrate on something else for a while you will usually feel better. It takes some practice but I really have found it quite helpful.
i have been to the er hundreds of times and they all say the same thing that i have anxiewty
See your doctor for a complete check up to rule out any organic reason for your symptoms and if those all come back negative, get a referral to a good therapist.
It sounds now like you are having some anxiety and that feeling you talk about, of not being "all the way there and in a dream........" that is called derealization and is a classic symptom of anxiety.
See your doc.
Good luck
Greenlydia