I had gastric sleeve 2 weeks ago. Most times when I am drinking water or eating the soft foods I start having cramps behind my breastbone where my stomach begins. None of my friends have had this problem. I can't get down enough water because it starts cramping. Any suggestions? I'm trying to eat slowly. I also never feel full or like I've eaten too much. And I have not experienced nausea at all which I hear is very uncommon.