Hi there, Twinge = a sudden slight feeling or emotion. I felt a twinge of guilt/jealousy/envy. Pang = a sudden sharp pain or painful emotion, a pang of guilt I agree with Tom that 'a pang' is a little stronger

There isn't much difference. Perhaps a pang is slightly more guilt. By the way, I always used the expression "tinge of guilt", not "twinge of guilt", but both seem to be in use according to my online dictionary. A "tinge" is a small amount. A "twinge" is more like a pang, in that it is a pulling action. I would say "pang of guilt" is the least common of the three, but all are fine. I hope that helps.

A “pang” hurts.

There isn't much, because there isn't much difference between "twinge" and "pang." I'm going to check a dictionary. "Twinge: 1. A sharp, sudden physical pain. See Synonyms at pain. 2. A mental or emotional pain: 'a twinge of guilt.' Pang: 1. A sudden sharp bodily pain: hunger pangs. See Synonyms at pain. 2. A sudden sharp feeling of emotional distress: 'a pang of guilt.'" I can't tell any difference between those two definitions.