puppeteer,

Welcome to NeuroTalk. Your post and question is difficult to answer because you don't say what your current symptoms are. I am also confused by your comments about the tonic-clonic seizure and slurred speech. It is usually difficult for a person to self-perceive both since the brain is dysfunctional during both events.

Regarding brain damage, a history of using hallucinogens and your fall suggest you do have an unknown level of brain damage/dysfunction. The term brain damage should not be scary because many people live full lives with damaged brains. It sounds like a bigger issue you have is anxiety. Anxiety can be the result of a brain injury or from psychological and/or psychiatric issues.

What are your current symptoms ? (How) Are they keeping you from working or school ? Have you tried to develop work-arounds to your limitations ? Are you currently receiving any treatment for your symptoms ?

With a better understanding of your current condition, we may be able to better help you.