Had a bowel movement but now my body wont stop releasing gas. whats causing all the flatulence all of a sudden? only started once i had a bowel movement?

Ongoing or a 1 episode? May be a form of gastroenteritis (infection) but check your diet . Beans , cabbage family ( broccoli, cauliflower, cabbage) tend to cause gas. If it is ongoing may also have food intolerances like to lactose or gluten or soy. f/u/ w/ GI or allergist. https://www.niddk.nih.gov/health-information/digestive-diseases/gas-digestive-tract/symptoms-causes