Hi my name is Carrie I'm 22 almost 23 in two weeks and for the past 8 or so months I get stomach pressure when lying flat on my stomach. The odd thing is only seems to happens to me at night. Here's some additional background information I'm 5'2 and weigh 147 pounds. in 2009 I was in a severe car accident and was diagnosed with a t-12 compression fracture, it did not heal completely. I occasionally get pain but I handle it pretty well. I also have GERD and an ulcer from a confirmed endoscopy in 2012. I'm not sure if any of those ailments I listed could contribute to this problem. Any insight would be welcomed and appreciated! Thanks!