I personally have had no issues, but two days after the surgery I was up 6 lbs vs being down. Now that I am 2 weeks post-op I am down 32 lbs. however my sister when she did hers 5 years ago would take all day to drink 8 oz of water and 2 oz of liquid. She had to be on liquids only for 7 weeks because she wasn't tolerating much. She still say to this day it was all worth it. She has lost and maintained being down 150 lbs.