Sleep walking yes or no?

hi, I think i am sleeping walk but not sure, I have been a late night snacker right before sleep which is about 1-2 am.. but it started about a week ago... I would get up and walk to point that i could fall down ( like a drunk and i was not drunk). i got in freeze got a Popsicle ( i love them).. that is not that bad. but couple nights ago, my sister told me she woke up wanted milk so went in kitchen, i was standing in the kitchen doing nothing. She asked if was ok, i nodded she said where are you? i told her camping, she tried to "wake" me. then she placed my hand in ice i jumped started to freak, how did i get there and why am i there. it was weird.. Last night i woke up and i was sitting on our couch in living room, i woke wondering how i got there. When i do wake like that i hungry like i need food. it is really weird!! My mom said it could be sleeping walk sort of. No one knows for sure. I do know i am tired in morin, can anyone help me at all. ty