Thanks for your reply, I have retired, not sure if that's a good thing I seem to see less and less people. It does give me time for research and I'm on a very steep learning curve.
We are lucky she can still get about, we are having 4 weeks in Tenerife soon, its good for her to do what we have done often in the past. Not sure about anti-depressants yet but we have a local carers resource centre where people meet and share experiences , I will see them when we get back. Thanks again for your advice I can't get to much of that.
Dave