I'm sorry to hear that you're feeling depressed I was just sleeved on 4/21/14, and I remember my nurses saying that the anesthesia can have an effect on your mood so maybe it's that? I didn't have that problem; my issue was mostly pain in one main incision, and gas. I swear for every sip I took it felt like I have to burp at least 5 times to take another one, so yes I def had trouble getting in my liquids and Protein too. Now 5 days post op, I'm able to drink Protein shakes, Soups, G2 Gatorade, and Water with no issue. I know you'll get there too; I'll be rooting for you