Has this ever happened to anyone? traumatized by seeing someone or a friend drunk out of their minds?

So yesterday was my friends bday party and i arrived late with a couple of friends to find her drunk out of her mind and I think she also took some kind of drug cause we found her in her bed and when she tried to get out of bed, she fell and literally couldnt move, her eyes looked like the girl like she was being exorcised or something! it was so traumatizing to me ! i dont know why...I can't get the image out of my head and i don;t even wanna see her or talk to her,...her fam was there s o we just left but wow I literally felt sick and still do! has this ever happened to anyone? I know a lot of us have been drunk but this was crazy! It makes me not ever wanna get close to wasted again and everytime i think of her eyes and her, it nauseates me...help!