Is it normal to have this much gas?

Well i guess i am very nervous because i have two midterms 15 minutes apart tomorrow and they are my two worst subjects i am like spinning in circles trying to figure out what to study and i have been having midterms all this week, i am not trying to be gross but i have been farting like so much its very embarring but is this normal or is it nerves?? Thanks so much for all answers.