Vacation time a mixed feeling

I love taking vacation.  More importantly I loved taking vacation last week.  I sorely needed a week away from work.  We lost three members of our team this year to them getting other jobs.  I got a quasi-promotion that left me with the bulk of the work from two of the three plus my own responsibilities.  This means I have very little free time anymore during the working hours.  No big.  I like being busy as it makes the day go by quickly.  What's a crappy feeling?  Coming back to work and wasting the first day back on a continuation of a project that I thought was finished.  Having 10 business days of work to cram into 4.  Not having time to eat lunch.