If you work full time because you need the money (not because you want to for whatever reason besides needing to bring home the money), does your job stress you out? I'm also going to say not because you worry about losing it (again, for whatever reason). But because you have harsh (and hard) deadlines, because your clients (if you work in a b2b environment) are demanding but you can't just say 'stuff it' to them, because you have so much on and it simply must get done, and just generally the pressure you have on.
I know there will be people saying you don't have to do so much but in some jobs, especially senior management and/or corporate, it comes with the territory. Same with working beyond your contracted hours - it's expected. And no, we are not suckers for doing that - we have our reasons.
But - once all is said and done. Does your job stress you out? Do you think about it when you're not working? Mine stresses me out most of the time (I run my own company) but overall I enjoy it. So I'm using AIBU as a poll:
AIBU: my job does NOT stress me out on a regular basis (i.e. more than half the time)
AINBU: my job DOES stress me out on a regular basis.