I was in a similar situation -- for me, I didn't feel like my contributions were welcomed, felt like there was too much of a load of work to do, but it also felt like useless work. Then the company downsized, and I was laid off for 4 months in the summer. During the recession, and only got a hand full of interviews during that time (I think 3 in-person, and 2 phone interviews). But that 4 months off made me a new person, so when I did get back to work (new job, with a strong need for my skill set) I felt (and performed) like I was 20 years younger.
So, "yes" to the job change, and a big "yes" to a real vacation (not just a week, but sometimes you need a month or more off). The best is if you can have some savings, and find a job that has a start date pushed out a bit (of course this is a bit risky depending on the job market and your ability to easily land a job).
So, "yes" to the job change, and a big "yes" to a real vacation (not just a week, but sometimes you need a month or more off). The best is if you can have some savings, and find a job that has a start date pushed out a bit (of course this is a bit risky depending on the job market and your ability to easily land a job).