2002 Toyota RAV4 Alignment

2002 Toyota Rav4 Automatic 80,000 miles

Hi,
A month ago I had my front end aligned. It needed it badly. Afterwards, my car drove like a dream and my gas mileage really improved. So far good news. But now my car is starting to shake a little at high speeds and my gas mileage has shrunk.

Is it possible for the alignment to "slip" and revert back to where it was?