Burnout?

After a couple of chats at church last night I started thinking about burnout as a possibility for explaining why I feel crummy a lot but not actually sick.
While there have been a couple of circumstances, such as tooth extractions, it seems to make more sense the more I think about it.
So I took an online test and, according to the results, I am a candidate for burnout (see below).

Here's your score:
Your score is = 47
Scores 0-25: Doing Fine.
Scores 26-35: Watch out you are at risk.
Scores 36-50: Candidate for Burnout.
Scores 51-65: You are Burning out.
Scores 65+: Burned out.

Now it's been six long months since my last break from work and during that time there have been periods of high workload and little rest. Then there has been the debacle with switching jobs that was most disappointing. Then when I tried to have holidays they got vetoed. Lots of built up frustration there.
I also find it tough to talk to some people, particularly my housemate whom I guess I expect to understand a bit more than others since I see him almost everyday. I guess I also, wrongly it seems, expect him to offer support. Instead mostly I get some kind of flippant response which may or may not be his way of being supportive. (It should be noted here than my expectation is usually higher than the reality when it comes to this particular thing.)
I don't find it fun on any level to be in this period of unrest where health is constantly either an issue or a concern. Only 4 or so weeks until that much needed break.