I was thinking more about this.... I became an obsessive cleaner years ago. My relationship with my ex (stress EX) was falling apart and the only thing I could control was how clean my house was. An 'outward' appearance. I had to make the 'outside' look good to cover the turmoil on the inside.
Is there turmoil going on in your head that you maybe need to take care of? Are you really stressed with buying a new house? Not taking enough time for you? Something on your mind that you need to say to your DH or MIL maybe? Find out whats feeling out of control on the inside, and you might be able to let go of SOME control on the outside.