It is interesting that the gastroenterologist said that the gastroparesis had nothing to do with autonomic symptoms, mine says it has everything to do with them. The vagus nerve is one if the biggest nerves involved with the ANS and it rules the GI system. One can have issues with the GI system that are not autonomic, but usually those would be due to some fibrosis.

GERD, esophageal spasm, motility disorders are all autonomic.

Anyway on your initial question about how you feel, I think that one can feel oddly due to either the parasympathetic or sympathetic overactivity. Most of my odd feelings, such as intermittent profound feelings of sadness upon waking, etc. were due to meds that didn't agree with me.

First thing I would look at is ANY meds. Secondly, then I would take a look at the autonomic system. That said, there is little that can be done other than crank it down with beta blockers, if they are tolerable. I can tell you from experience, it doesn't pay to use much in terms of drugs, since the ANS gets messed up worse.

I do hope you feel better soon.