So on a wall in the master bedroom of our house my wife and I notice that the wall is starting bulge out a little in a straight line across part of the wall that angles out. This wall is in front of the bathroom in our bedroom. Then we noticed right above the door of the bathroom, another vertical straight line is starting bulge out and up to the ceiling. We were not sure what was happening with the wall. Of course we feared the most, mold inside the walls. So we went and got the spikes you can stick in your well to test for moisture inside them. So we put a spike in yesterday and when we pulled it out after the allotted time, the spike showed no significant trace of moisture. So now we are back to square one in figure out what is causing these bulges. Anyone have any idea or have this experience before. The house is about 10 years old if that helps.