I noticed lines of discoloration on the drywalls appears to be were the studs are. I have been wondering what it could be and I still did not find the answer. Recently, the ceiling in the living room starded to have areas of discoloration. I first thought that it was dust from the fan so I tried to clean it with clorox but it is not going away. The spot is getting larger and a few more spots have begun to appear in my bed (flat ceiling) and dining room (vaulted ceiling)also.
I really do not know what to do. Please help me.