emotional attachment to childhood-

i don't know what it is but every time i experience something from my childhood i get really sad and really wish i could go back.
disney movies make me really emotional because i wish i could go back to them. i wish i could go back to disney world when i was little. i don't know what it is but it just makes me so sad and nostalgic when i go to those places. i don't know if it's because of the lack of adventure in my life or what but it really just hurts.
i also get emotional when i see animals. almost like i miss farm life or something. i'm just a mess and kinda think i need a therapist.
god help me!!!