Hi, Well Im A Girl Age 14 Now And Ive

Hi, well im a girl age 14 now and ive been having a farting problem since 2012. Since school is part of my daily life, ive noticed that my problem tends to worsen when im with other people. I get really anxious and even though i go to the restroom (nothing happens there) and go back to class it still happens. I tried gas-ex and no luck. I tried Bean-o, no luck. It's controlling my life and i don't know what to do and the catch is that sometimes i don't even know that im farting. I can't sit in a desk that is in the front of the class because then the person behind me will smell it and oh the humiliation that would come from it. The stress from this has made dark circles under my eyes diminishing my self esteem even more. Im paranoid every day over where to sit, how far away, can i trust them if they find out.... Im becoming hopeless