i've had trouble for a year, first month and a half threw up at least once a day until I had all the fill removed. Then periodically had obstructions enough to be sick and had periodical stomach pains....went to the ER and they first diagnosed as constipation, but I guess that is a symptom of the erosion process...finally had stomach pain 24/7 went to the ER again and they compared the two ER visit cat scans and saw the erosion and performed the removal surgery....I had severe infection in my stomach and intestines, stayed in the hospital for 10 days on antibiotics. It has been almost 6 weeks and I'm still healing inside and out. Have no idea about the slippage of the lap band but I would keep your doctor informed of all changes that you notice.