I Can't stop farting in cl!!!!?

I am in middle school and for some reseon i cant stop ping gas! it randomly started 3 weeks ago. One day i was fresh and smelling like a rose, the next day i was tootin! Is it pubery or i is it just my own gy problems. Any advice? How can i prevent farting so much? People notice it and call me names behind my back. I feel horrible. Even my teachers notice!!! I think it might be bloating but im not sure. I go to the restroom to relieve the gas but once i go back into the clroom i need to do it again. I hold it in through out the day *which is a real pain* Sometimes i fart without even noticing. I hate it! This is real! Any advice? When i told my mother she said it was just natural and i should just let it out. But if i keep letting it out in school people will start teasing me more! Even the guy i likes teases me. THANKS FOR READING THIS AND PLEASE HELP!