Fist sz bulge up& slight left of navel. nausea when bm or if no bm x3days. must lay flat to hav bm if soft have deep grooves length of stool x3 sides ?

You need to be seen: First, be sure you eat lots of fiber and lots of water and try a fiber laxative. If you are having constipation severe enough to cause abdominal bulging (unless you are very thin) and if not going for 3 days, there is a problem. I don't see how you could have a BM lying flat. This is a significant lifestyle impediment, and there could be something blocking the release of stool from rectum.