I can think of a number of times that I've "hallucinated" when I smoked.
Let's start with my most intense one: It was the third time I smoked weed. My first two times I smoked mids out of small pieces. But the third time, I went to visit my friend in another city, and he told me about how he started to grow his own weed and how he has some "crazy special shit" he wanted me to try. I took one hit of this weed out of a 3ft roor bong. I coughed like hell, but i didnt feel anything else for a few minutes, but then it hit me like a train. I was telling my friend and his friend a story, and to me, it seemed like i finished telling the story and that we all started laughing. SO when i stopped laughing my friend just looks at me and asks "so then what happened?". I was totally confused to why he was asking me this when i just delivered the punch line to the story. Basically, what I was feeling was that I was stuck in this time warp where everything kept repeating itself over and over. I tweaked hardcore. I would start making random movements to try and change up what was happening (because to me everything seemed to be happening over and over again). On top of that, whenever i went to drink whatever out of a cup, it felt like i was falling into the cup whenever i went to take a sip, and it felt like I was falling back into reality whenever i put the cup down. I realize now that I was tripping so hard because it was a very exotic sativa strain that I was smoking and I just didnt have the tolerance for it, unlike my friend.
Another experience I've had is when I smoked this dro. At one point i thought I was eating my face. Also, the car i was sitting in seemed to be moving from side to side even though it was on park and turned off. The shadows of trees were also swaying back and forth, and I kept hearing a car was driving past, but there was no car.
In my most recent experience, it seems like im swaying from side to side when I stand. and also, when i watched Family Guy, episode "Not all dogs go to heaven", there is a scene where the pan out from a book burning to they edges of the universe. It felt to me that I was flying away from that book burning, past the trees, past the sky, past the planet, past the stars, and past the galaxies. It was great! haha

I also alway get CEV. Lately i've been able to focus more on what i see. Before, what I used to see changed rapidly, and couldnt ever focus on it. My ears would start ringing if I kept them closed for two long. But now i've been able to stop the ringing lol. But this only happens when I smoke blunts and bongs. Vapes/pieces/chillums/joints do not give me these effects at all. I get much higher when i smoke out of a bong or blunts.

Sorry for such a long post. It's my first and i got kinda carried away haha