A couple of nights recently, the top of my stomach (so above my belly button up to my rib cage) feels really tight. Like the muscles are feeling tight. It's not painful at all, but just a bit weird and uncomfortable. Has anyone else had this? I don't think it's braxton hicks, as i'm sure this would be lower down (this feels more like my stomach). The other night it suddenly felt tight, then stopped when i rolled over. Hhmmmm. I'm flummoxed!