My boston terrier is not eating since we have moved into our new apt. She has never ate very much but has significantly decreased. What can I do?

Animals don't usually starve themselves when food is available. Any change in "routine" may make them apprehensive. Since you love her so much, take her to a vet... just to be sure. Be affectionate, make sure she has plenty of fresh water, and the same food she ate before... but allow a vet to examine her... Good luck...