I had my sleeve on 12/13 so almost a week out and I too am having trouble getting my water or any liquid in. No matter how small of a sip, I get a cramping pain in my chest, right below the breastbone. Everyone keeps telling me it's normal, it's the extra CO2 from surgery and to just keep walking, it will eventually get better. I sure hope so because I would like to drink more but with this constant pain I don't feel like I can. I hope you both feel better as well!