<human>: Can you give me a shortened version of the text?

Hi, reddit. I hope this is a good place for this, since it's not a relationship problem but a self problem? If not, direct me to a better sub! 

Today in class at college, I witnessed a guy have a seizure. Nobody knew what to do except *one* woman who's epileptic herself. I'm like 90% sure this dude would have died had she not been there because she knew to get him on his side and elevate his head. Even on his side, he clearly wasn't getting air and was straight up turning purple. 

As soon as I saw his skin changing colors, I had to *leave the room*. I felt really shaken up and was probably seconds away from throwing up. Which sounds wildly selfish because it had nothing to do with me, I know.

After seeing that, I've felt weird all day. I honestly feel kinda traumatized and I was super anxious to get out of class. Thinking about going back to the classroom itself makes my stomach turn. 

This is also weird for me, because I don't typically have normal emotions. I'm not empathetic, don't really get upset or angry easily. 

Is it normal to feel this affected by something that didn't even happen to me, and had nothing to do with me? How can I stop thinking about this?
<bot>: Witnessed someone have a seizure, nearly close to death. I feel kinda traumatized, even though I don't normally experience much emotion. Is it normal to feel so affected? How can I get over it?