Hi, I am new to the forum but we noticed that there is a huge bump on our ceiling, and are clueless to how to fix it, or what's causing it to start with. When we touch the bump it is soft - seems to be some kind of water leakage, but we don't know. Could anyone help us?
The picture of the ceiling is uploaded here: http://tinypic.com/r/2im3qzo/8
Thanks so much