Three yrs ago we replastered our living room and bedroom. The West side of the lower internal wall and the front of the house have soft to hard bubbles that formed. It seems to be getting worse and worse. We have retuckpointed the exterior and water proofed the brick and the roof is about 4 yrs old. Also we are running a dehumidifier in the basement and it's dry. Note the walls are not insulated and it has 3 layers of plaster to the brick. What do I do????