help

[MAN OF STEEL]

i was just watching tv and i heard this noise what sounded like a fart or burp. i looked over at my grtb and it looked like she was sneezing, with her mouth open she would sneeze and a fart sound would come from her stomach and hiss very violently from her mouth. her stomach looked kinda like she was trying to digest something or like a baby alien was trying to come out! this happened several times and then stopped. i watched her for about 5 minutes and she looked and acted like nothing even happened.
this was the wierdest fu*&ing thing i have ever seen an animal do. does any one have any idea what in the hell this was? i am really worried, your help is much appriciated thank you!