@New_dawn_fades
Yes, but they are only talking about "signs and symptoms of SN poisoning" without mentioning the quantity which could be an important variable here. Taking a sub lethal dose, which usually happens if the poisoning isn't intentional, won't make you lose consciousness so quickly or maybe not at all, so you'll be aware of the whole process, whereas if you deliberately take a lethal dose with the proper anti emetic regime and antacids, and maybe even add benzos, you'll be unconscious pretty quickly.
That's just my take on it, but don't take my word for it. I might just be trying to convince myself that it isn't so bad, without a solid ground.
Edit:My god, I mentioned the wrong person who has a similar name