I am at a risk of death?

Apparently my cavity developed so much, I might die? 

I have had this cavity for quite some time already. I asked mom for help when it only started showing. She told me not to touch it since it didn't hurt. So I didn't, but I kept bringing it up. 

This summer, august, I legit greeted her from work with my mouth open and asking for help. She told me that okay, she'll help, but I have to go get the doctor's number or make an appoinment myself. I, of course, didn't. I am 17 and I didn't feel like it was my place to do so, and soon enough I was busy with studies at uni and part time work.

This morning my sister tells me what my parents discussed, and apparently from dentist's words, and that was a pretty good dentist, the case was so bad I need an even better dentist. My internal organs or something could be injured or infected already and I might need operation and... I might die.

My sister cried a little about it, I calmed her down cause she was supposed to go to school.

I don't know how to feel. My first thought was 'Is that how all people feel when they hear the coud die? Confused and not believing?'

I dunno man. I'm kind of teary now and confused. I don't know if I should tell anybody, I'm scared.

No layout for this entry, I'm not in the mood for that.