Heroine/methadone overdose

[Depressive1995]

Can you feel amy negative? Anxiety panic? I heard many people have to vomit..
What are the risks if you wake up again?

 

[Depressive1995]

And one more question: could it be possible that you somehow be aware of the breathing depression even if you sleep? Or maybe you dont even fall asleep but just get a strong breathlessness with panic? Like suffocating?