Smelly burps?

Katie • Married, mom to three beautiful girls. Nori - 12/23/2009 Ashtyn - 4/16/2012 Emerson - 8/4/2015
I have the most embarrassing issue! My burps for the last 3-4 days smell so bad! Like rotten eggs/sulphur. But I haven't had eggs for it to be a reason to! I'm constantly brushing my teeth and mouth wash and drinking tons of water, nothing works! They're horrible and I can't stop them. Does anyone else seem to have this issue?