Healium was too stronk, nerfed it to behave like a good gas.
Added coughing and euphoria mood if breathed in small quantities to alert the player.
Sleep if it is 3 moles in the air for 3 to 5 seconds
Sleep you if is more than 6 moles and it heals you while knocked down.
Lowered the amount of healing done
Edit: It doesnt knock you out, it makes you sleep now, since the knockdown effect was so strong that people wouldn't wake up