Bad weed experience

I had smoked everyday for months. We went through halves and quarters a day hitting a bong and the occassional blunt. For a girl I take the biggest hits off the bong out of anybody, people think it's crazy how I rip it. And I could outsmoke anybody. Recently, I quit smoking for about 2-3 weeks. I went to hit a bong ONE time and got way too high. Uncomfortably. I went right inside and laid down bc I started seeing stars. I was laying in the bed and I had the spins, I was just staring at the ceiling praying it would stay still and stop spinning. I heard a fan in the room and it started tripping me out like the noise of it to me it sounded like music and I kept hearing the song play over and over in my head I couldn't get it to stop. It finally passed once my high was over. So, a week later, I smoked half a blunt with my friend and got geeked af. Like the perfect happy geeked lol. So, the next day I was gonna smoke again with my bf and we were gonna hit the bong. I took the first hit and I was feeling riiight like already a 5 on a scale of 1-10. So, I took another hit. I was feeling a great hii for a while I was like a 12 on a scale of 1-20. We were outside smoking and there was like an air conditioning unit. It was on making a buzzing noise. For some reason, this noise started hurting my head. Like it got reallly loud to me and started hurting my brain. Then, it started to sound like LOUD static in my head and my brain started feeling like it was burning. I looked at my bf and said his name and I started seeing bright dots and static from the outside of my eyes and eventually filling my whole eyesight and I was sitting in a chair and fell down and passed out. I woke up and my head was still hurting so bad so I was like i'm going to lay down. So, I had to go thru a window to get in and as I was going in the window (2 steps away) I apparently passed out before I ever even got inside. But in my head I thought I had made it to the bed and I saw myself sleeping. I woke up and my bf was holding me and said I had been passed out for like a minute 30 seconds. I was sick the whole time I was high and couldnt wait for it to wear off. Please can someone tell me why this happened? What causes this.. how do I stop it from ever happening again? I never want to feel like that again it's the worst pain i've ever felt. Pls help there's no answers anywhere.