Why is there sooo much GAS in my intesttines?!?

i just discharged from hospital this evening after cutting off my appendix. i found that there is alot of air moving / vibrating at my appendix area. How can i reduce it? every time i fart the air just come backs and its kinda like playing around in my intestines.. im afraid that the "seal" on my appendix gets tear..i've been avoiding dairy but theres still so much gas in my stomach.. whenever i sit , my intestines keeps vibrating non stop.. i can even feel its moving! :[ .