Potions, Traps and Throwing Weapons

I want opinions on the following rules. Because in my opinion they're not quite right, or I'm not reading them right. (English version)
1)Potions
On the potion of healing card (and some others) it says "You may drink the potion at any time". It doesn't make sense that a character would be able to quaff a potion between being attacked by a number of monsters on the same turn I think.
I'm thinking of playing it so a character can only use a potion when it's their turn. When do others allow the drinking of potions, would some even allow it after the character has been reduced to 0 body points?
2 Traps Through Dooways
In some of the main game quests there are pit traps the other side of doorways.
Would a character need to check specifically for a trap the other side of the door and move on their next turn? There's no rules about this. It would make the game less exciting if everytime a character goes through a door they have to cut their move short and do a trap check. Or, if these traps could not be found by searching characters could not avoid falling into them (a bit unfair, though maybe sometimes hard cheese is ok)?
3 Throwing Weapons
According to the rules- When you throw a spear or hand axe you lose it.
I don't think this makes much sense either. Why would you lose it? Surely you would just go and pick it up, or pull it from your victims body?
We play it so you can re-use thrown weapons, I don't see anything wrong with this. The location of the thrown wepon is marked with an upside-down tile. Monsters can also pick the weapon up and throw it back, if they have the intelligence to.
Opinion of these matters?
1)Potions
On the potion of healing card (and some others) it says "You may drink the potion at any time". It doesn't make sense that a character would be able to quaff a potion between being attacked by a number of monsters on the same turn I think.
I'm thinking of playing it so a character can only use a potion when it's their turn. When do others allow the drinking of potions, would some even allow it after the character has been reduced to 0 body points?
2 Traps Through Dooways
In some of the main game quests there are pit traps the other side of doorways.
Would a character need to check specifically for a trap the other side of the door and move on their next turn? There's no rules about this. It would make the game less exciting if everytime a character goes through a door they have to cut their move short and do a trap check. Or, if these traps could not be found by searching characters could not avoid falling into them (a bit unfair, though maybe sometimes hard cheese is ok)?
3 Throwing Weapons
According to the rules- When you throw a spear or hand axe you lose it.
I don't think this makes much sense either. Why would you lose it? Surely you would just go and pick it up, or pull it from your victims body?
We play it so you can re-use thrown weapons, I don't see anything wrong with this. The location of the thrown wepon is marked with an upside-down tile. Monsters can also pick the weapon up and throw it back, if they have the intelligence to.
Opinion of these matters?