i would be interested to hear what happens; i've just been signed off work for depression and have actually since quit my job. the hours and expectations were, similar to your predicament, totally unrealistic, and we also had huge staffing problems. this went on for months with no improvements. highlighting the issues, however professionally, does not solve them overnight and in the mean time you are still expected to carry on regardless. i have drawn a line under the whole thing and am taking some time out. i realise that this is not an option for everyone and certainly not an ideal one, but ultimately you must remember that your health, physical and mental, is of much greater importance than a job. i'm not sure what job you're doing in local authority, i worked in private care for challenging young people, but without a support network from your colleagues and managers things wont work.