Under the window in first floor bedroom there is a section of wall bulging inward enough to see/feel. Concrete slab foundation, attic overhead. No other part of wall affected visibly (although unconnected interior wall has smaller bulge--this one is right behind where the toilet is in master bath). House built 1998, mid south. Any thoughts?
Being that the bulge is under a window, I would suggest moisture is coming in from the window somehow.
Check out the window for bad caulk or or other areas where water could be making it's way in.
Thanks and good luck