Feeling of pain is a type of feeling, a state of mind. Negative reward (that's an oxymoron lol, let's call it punishment) is an action that leads to an unpleas

Feeling of pain is a type of feeling, a state of mind. Negative reward (that's an oxymoron lol, let's call it punishment) is an action that leads to an unpleasant feeling such as pain, fear, hunger, etc.