I am a 25 year old female who works full time, commutes, and is very busy. 6 months ago I moved out of my parent's home into my own place and within a week or two I started gaining weight and experiencing fullness and nausea after eating red meats,salmon, bread, and popcorn. I can not lose weight to this day no matter what I do. I have gained 6 pounds ! To this day I wake up so full no matter what time I eat the night before and very nauseated every single day. I can't eat certain foods. I bloat real bad and always am uncomfortable. Sometimes my stomach is so bloated it is sore. I have had `1 menstrual cycle since June and it was very short and light. I went to PCP and she thought it was gastro related. I tried Prilosec and probiotics with no help for 1 month. I went to a gastro doctor who ordered an ultrasound of abdomen and it showed nothing. Is it stress? I don't feel stressed. Is it digestive? Is it an ovarian cyst? My symptoms get worse every month. Sorry for my long message. I am just at my wits end !