Once in the ER, after trying to jump out of my husband's moving car, I experienced a short period of mutism and inability to move, with staring. Just prior in the ER, I had been screaming and rolling around the ER entrance floor. The mutism and paralysis of sorts happened after they got me into a wheelchair.

Maybe 30 mins later, in the ER bed, I started screaming again. I believe they gave me some injection.

The hospital psychiatrist was not 100% sure the mutism/freezing was catatonia at first. Though I was immediately sent to the psych hospital, the next day I was sent back to the general hospital for a CT scan and EEG. The results were negative for seizure activity (there are some types of seizures involving similar staring/mutism/freezing). Given that, they concluded that it was a brief form of catatonia. There are various forms of catatonia.