Paracetamol (Tylenol) causes death by destroying the liver. If you take a fatal dose, it's quite normal to feel totally fine for the first several days afterward. In fact, that's what's so insidious about overdoseāthree or four days later you still feel fine, but your liver has been destroyed, and at that point nothing on earth can save you but a liver transplant.
Then, over the next few days, you start to feel the effects of losing your liver. Your skin and eyes turn yellow. You experience severe pain and nausea. You lose the ability to eat. You start throwing up constantly.
After that, the abdominal pain becomes steadily worse. You become confused and delirious. You start experiencing tremors, then convulsions. A few days after that comes seizures, coma, and death.
It's a long, agonizing, lingering death that can take weeks.
Source:
https://www.quora.com/I-took-7-para...fter-2-days-Why-is-that/answer/Franklin-Veaux