Right then, this is the second attempt at replying to this as I got booted out on the first! Bloody Internet!
Like you I have an ongoing family health problem, plus in the last few years I have suffered a lot of bereavement. Looking back I came quite close to a nervous breakdown last year. I was constantly tired and this may have given the impression that my mind was not on the job or that I wasn't consentrating. I took on an approval holders position, and my boss was aware of my situation. Consequently, my approvals were put on hold. This may have been the right decision, I do not know; I have not made any cock ups though, but it seems that I gave the impression that I might. This has cost me dearly, and there are other people who have been with the company a shorter time than I have who have more approvals than me, which upsets me even further! But I am not bitter.
So what advice can I give to you? Tell youe supervisor the outlines of your situation. Maybe take some holiday. If you work for a company that at least semi decent, they should realise your predicament and help you out. Aircraft safety is surposed to be paramount no matter who you work for, and your company should realise this.
Just as an asside, there was a bloke who worked in a sweet factory who needed some time away to sort out a problem. He was refused. There was a serious senece of humour failure in Blackpool when everyone who bought rock as a souvanier saw that they bought Bastards rock instead of Blackpool! And at what cost to the sweet factory!
I do hope that everything works out for you and that your family member gets better.
JFD