So I woke up this morning and found my mom dead on the couch (theoretically)

I'm 15 years old, and we're the only two in the house. No foul play involved, I believe. She up and died from drinking way too much, just like my dad said was going to happen one day.

As I run to tell the neighbor, something VERY BAD happens. This is completely (I believe) unrelated to my mother dying. As a result, a day passes, and I've told nobody. Then another day passes. I start to feel like it's too late to tell anybody, so I don't.

It's very hot outside, and there's no power.

I'm curious. How long before my mother starts becoming an unholy, gooey stink bomb? A couple hours? A day?

Also, are there any studies/non-fiction/well-handled fictional accounts out there about similar situations.... where loved-ones die and a person does nothing about it? You read it about this happening enough that you'd think someone has talked about it. But I'm coming up empty.

Hey! Someone edited my title.

Thanks for the answers so far.

Ahh, my mother and I thank you both. Very helpful.

Thanks for the additional answers.

As for the reason... I want to tell someone, but there's nobody to tell. The police and hospitals and rescue are all preoccupied with the supernatural VERY BAD thing that is happening, and even if I did tell them at this point, they wouldn't do anything about it. All the neighbors are gone at the moment. They will return, but a few days will have passed by then. By that time, most of them will have dead loved ones of their own.