Hello, I am not home improvement savvy at all. I've tried searching the internet but couldn't find much on this particular issue. All that did pop up was about "ghosting" and I don't believe that is my problem. This occurs mostly in the bathroom and the hallway wall that runs the length of the bathroom. Also one area in the bedroom ceiling next to the bathroom. It looks like the studs are bulging out. It is extremely noticeable. In some areas either the paint or drywall has also cracked. Please see attached photos. w hat could be causing this and how can it be fixed? Thank you!