all in (one's) head



all in (one's) head

Not substantial or real; having been imagined or invented. I don't know why you think I don't trust you. I can assure you that it's all in your head.
See also: all, head

Common Names:

NameGenderPronouncedUsage
Proteus-Greek Mythology
Ural-Bashkir
Chinwendu-Western African, Igbo
ChuckCHUKEnglish
CaelanKAY-lənEnglish (Rare)
Nathanaelnay-THAN-ee-əl (English), nay-THAN-yəl (English)Biblical, Biblical Greek