Waste of Money

I got the ballon put in 6 months ago. The first 3 days were tuff. I had to get IV fluids on day two and three because of the excessive vomiting. After that I acclimated well. But I never lost weight. I ate right over it. I actually gained weight because I am now going through menopause. I had the ballon removed march 27,2017. Ever since then I have been having the most awful smelling burps and gas. Mainly burps that smell like rotten eggs. Anyone else have this problem once the ballon comes out?