Other forms: alexithymias
Alexithymia is a condition that makes it difficult to feel or express emotions. Someone with alexithymia might realize their heart is beating fast but be unable to connect that with a feeling of fear or excitement.
Alexithymia was coined by psychotherapists in the 1970s from the Greek a-, or "not," lexis, "word," and thymos, "feeling." It gave a name to a person's inability to identify their own feelings, a condition that's associated with being on the autism spectrum. Sometimes called "emotional blindness," alexithymia can sometimes make it hard for people to form emotional attachments to others.