That happened to me. I was only able to eat about two to three bites, maybe 1/2 a small can of tuna and that was it. I often tried to force myself to eat more and spit up almost everything I ate. I was confused and thought I needed a fill because I was eating all day. My fill Dr. actually gave me a little bit of an unfill because he said I was not eating enough (I was spitting it up). I have only had 2 fills and 1 partial unfill and I am still losing. Since my unfill I have lost 15lbs. I strongly believe you should go to the dr and have them check you out. You may think by eating so little it helps, but your body needs enough calories to lose weight.