My corner tub and vanity are pulling from the wall
I noticed that my tub and vanity which are on the same outside wall attached to each other are pulling away from the wall, with about a 1/4 inch space or more on the vanity and a 1/8 inch or so gap downward from the recently redone caulk on the tub. The house is about 14 years old. Never used this tub much till now since there is also a standing shower. Always thought it was a little bit off, but since I've really started using it the last few weeks it is definitely pulling away. What do I need to do to fix this or identify the problem and what needs to be done. It is a 2 story with a walk out basement, with a steep backyard.