About My Job

Since July, 2009, there were some adjustments in my job.
At first, I got an urgent instruction to go to the Kaohsiung branch office. Then, I went back Taipei office to take over the routine shipments. Till this Oct, Miss Bonnie came back. Thus, I can back to my position. Recently, an outcome cross to my purpose as my job shift to others again.
This period, I felt so tired of job and I really thirst for annual leave.
As reported, when an employee work for a company for approximate six years, it's time to consider to change a environment. Actually, I worked for this company since 2002.
Could it be said that it's time to make a decision?
Or, should I try to adjust my attitude about this job.