Help with fixing bulging drywall seams
This is driving me and my OCD NUTS! There are visible bulging seams all over in my tall stairwell and I can't figure out how to fix it without removing and beginning new (just got done removing deteriorated plaster and drywalling an entire floor- can't bring myself to do it again just yet). I have tried sanding it down and it appears the bulge is actually the drywall itself settling onto the piece below it. I also tried adding more screws at the seams but the problem is- there are no studs to be found. When examining an area on the ceiling where the same problem is occurring I realized that the visible joints occur when two pieces of drywall meet in between joists and no extra bracing was added to secure the ends to. Is there anything I can do to fix the problem without removing the drywall? Any suggestions would be appreciated.