When I was on risperidone, I was always nauseous. The only thing that helped was Phenergan. I don’t know what to say about being zombified as I get this feeling frequently on all the meds I have been on. I hope you get some relief some how. Nothing is worse than being hammered down from psych meds, meds that are much needed for stability
When I was sick like I had been poisoned from risperidone, it took me 6 months for it to go away. It took years for the foggy drugged feeling to go away. Maybe less, I was in bad withdrawl for much of it. Dont know how long it will last for you, but what you are describing with risperidone went away eventually for me.