Sleeved 8/27/13...weight loss 38#. Seem to be stalled last couple weeks with a loss of 3#. I am worried I am doing something wrong. I am only able to get in an average of 500-600 calories...50gm protein/ day. I have occasional nausea/ no vomiting/ but do have pressure & some pain in my chest after eating or drinking. I feel drastically tired and drained which is probably dehydration as my H2O intake is hanging around 25 oz/ day. I cannot seem to get the meals, protein drinks & water all in. Help!!