Bre, First off. Using a smart phone to read this forum means you miss a lot of information. Check it out on a laptop.

I do not think you suffered any brain damage AT ALL. If you did not black out, you were not likely even strangled. Somebody may have TRIED to strangle you. That alone is very traumatic. It can be like my claustrophobia. You likely have a case of PTSD. My mind did similar things after I was stuck in a confined space for a hour.

Stop researching. It will only make things worse. Do you want to get better or worse? Research will raise your PTSD/anxiety levels. Most of what you will find will not even apply to your situation.

A single dose of compazine should not be a big deal.

A benzo like, Ativan, Xanax, Klonopin, etc are mild anti-psychotics.

Brain damage that takes weeks to show up is not from an event like yours. It relates to immediate damage that gets worse over the next few weeks. You did not have any immediate damage. Ignore that idea.

Did you suffer a neck strain/injury? They can cause a myriad of neurological symptoms.