@TAB I think mine is because I have spent so much time in bed  because of my depression,  that I have loss muscle mass. And of course the side effect of both medication is weight gain, and because of the depression, I have been eating comfort food. So more weight gain. So I think the muscle are no longer strong enough.

At this stage I am planning to see a physio that has a machine that can measure the muscle loss and can pin point where the muscle loss is. Then they can prepare an exercise program designed to strengthen the muscles that need it. But I have to try and get some of my super to be able to afford it. But if it means getting my life back and being able to walk regularly, I am prepared to sacrifice my super for that.