Hi Jodee,
Nope its not weird.Mine were more often upright and supine.My LES valve wasnt working at all.This may be your issue. Please make sure if you do get the Nissan Fundo ,pleazzzzzzzzzzzzzzzzzzzzzzzzz make sure u get a skilled laproscopic surgeon or general suregeon who has dun over at least 100.
Take care, hope u feel well
Bea