Does anyone have any bad drug trips that they have PTSD from?

I’m sure people’s gonna laugh at me, but I had a bad trip years ago with marijuana and I’ve never been the same since. I literally if I smell it, I will freak the hell out and think I’m high again I cannot be around people that consume cannabis. If people are high, it starts to take me back to the god awful evening. I guess I’m just putting it out in the universe that if anybody understands what I’m talking about or has any advice, please do so because therapy is not doing shit.