Hi, I had my surgery in 09 and lost l05lbs. I have since been experiencing vertigo type systems. I have been to the Drs. and everything has checked out okay. It starts in my eyes like I have a hard time focusing and then I get a little dizzy most times I can still function but when it gets bad I need to rest and in and hour it seems to pass. This is my only problem I have had a good experience with this and I'm so grateful to have my life back.