Out of nowhere today i started passing gas and burping like crazy more than normal, and my burps smell so bad.. not sure what is up with me?

Stomach/ gallbladder: Could be related to hydration status or diet. Ulcers, gastroesophogeal reflux or gallstones/gallbladder problems can all act like this. Adding probiotics to diet May be beneficial, but a physical by a Dr and obtaining history of you/family would help. If stomach or gallbladder problems run in the family, it could be that. An ultrasound of the gallbladder and checking blood/ urine would help too.