I have a very sensitive sense of smell, AND I get the weird smell symptom that sometimes comes with MS.

The fact that you are only smelling this when you open the fridge, leads me to believe that there is something (in/around the fridge) that has just not been found yet. Sounds like your nose is just very sensitive, like mine, and picking up on something your husband's isn't.

Have you looked in the freezer? Is there some vegetable combination (cabbage, brocolli, cucumber) that might be bothering you (and not him)?

When I go through a period where I get "the smells" (from MS), they happen wherever I might be in the house or yard, not just in one location.

Cherie