Angioedema: Angioedema is a severe swelling beneath the skin, especially of the face and the limbs. Sometimes, rashes also appear along with the swelling. Other symptoms are swelling of the eyes or eyelids and lips, stomach cramps, and difficulty breathing.
Emotions, like fear and love, are carried out by the limbic system, which is located in the temporal lobe. While the limbic system is made up of multiple parts of the brain, the center of emotional processing is the amygdala, which receives input from other brain functions, like memory and attention.
When people feel emotional pain, the same areas of the brain get activated as when people feel physical pain: the anterior insula and the anterior cingulate cortex. In one study, these regions were activated when people experienced an experimental social rejection from peers.