I am 58, doing paperwork to draw a pension early. I work part time. I have a family. DH has had some worries and offloads onto me which I listen to and give help if I can. I live in a nice house, nice area. I have some difficulty walking but manage. Lately, after starting the pension paperwork, I seem to have developed a deep melancholy. I can talk to friends but there is nothing in my life to be sad about except the walking difficulties. How can I shake this feeling off?